1.
Geographic coordinate system
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A geographic coordinate system is a coordinate system used in geography that enables every location on Earth to be specified by a set of numbers, letters or symbols. The coordinates are chosen such that one of the numbers represents a vertical position. A common choice of coordinates is latitude, longitude and elevation, to specify a location on a two-dimensional map requires a map projection. The invention of a coordinate system is generally credited to Eratosthenes of Cyrene. Ptolemy credited him with the adoption of longitude and latitude. Ptolemys 2nd-century Geography used the prime meridian but measured latitude from the equator instead. Mathematical cartography resumed in Europe following Maximus Planudes recovery of Ptolemys text a little before 1300, in 1884, the United States hosted the International Meridian Conference, attended by representatives from twenty-five nations. Twenty-two of them agreed to adopt the longitude of the Royal Observatory in Greenwich, the Dominican Republic voted against the motion, while France and Brazil abstained. France adopted Greenwich Mean Time in place of local determinations by the Paris Observatory in 1911, the latitude of a point on Earths surface is the angle between the equatorial plane and the straight line that passes through that point and through the center of the Earth. Lines joining points of the same latitude trace circles on the surface of Earth called parallels, as they are parallel to the equator, the north pole is 90° N, the south pole is 90° S. The 0° parallel of latitude is designated the equator, the plane of all geographic coordinate systems. The equator divides the globe into Northern and Southern Hemispheres, the longitude of a point on Earths surface is the angle east or west of a reference meridian to another meridian that passes through that point. All meridians are halves of great ellipses, which converge at the north and south poles, the prime meridian determines the proper Eastern and Western Hemispheres, although maps often divide these hemispheres further west in order to keep the Old World on a single side. The antipodal meridian of Greenwich is both 180°W and 180°E, the combination of these two components specifies the position of any location on the surface of Earth, without consideration of altitude or depth. The grid formed by lines of latitude and longitude is known as a graticule, the origin/zero point of this system is located in the Gulf of Guinea about 625 km south of Tema, Ghana. To completely specify a location of a feature on, in, or above Earth. Earth is not a sphere, but a shape approximating a biaxial ellipsoid. It is nearly spherical, but has an equatorial bulge making the radius at the equator about 0. 3% larger than the radius measured through the poles, the shorter axis approximately coincides with the axis of rotation
2.
India
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India, officially the Republic of India, is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and it is bounded by the Indian Ocean on the south, the Arabian Sea on the southwest, and the Bay of Bengal on the southeast. It shares land borders with Pakistan to the west, China, Nepal, and Bhutan to the northeast, in the Indian Ocean, India is in the vicinity of Sri Lanka and the Maldives. Indias Andaman and Nicobar Islands share a border with Thailand. The Indian subcontinent was home to the urban Indus Valley Civilisation of the 3rd millennium BCE, in the following millennium, the oldest scriptures associated with Hinduism began to be composed. Social stratification, based on caste, emerged in the first millennium BCE, early political consolidations took place under the Maurya and Gupta empires, the later peninsular Middle Kingdoms influenced cultures as far as southeast Asia. In the medieval era, Judaism, Zoroastrianism, Christianity, and Islam arrived, much of the north fell to the Delhi sultanate, the south was united under the Vijayanagara Empire. The economy expanded in the 17th century in the Mughal empire, in the mid-18th century, the subcontinent came under British East India Company rule, and in the mid-19th under British crown rule. A nationalist movement emerged in the late 19th century, which later, under Mahatma Gandhi, was noted for nonviolent resistance, in 2015, the Indian economy was the worlds seventh largest by nominal GDP and third largest by purchasing power parity. Following market-based economic reforms in 1991, India became one of the major economies and is considered a newly industrialised country. However, it continues to face the challenges of poverty, corruption, malnutrition, a nuclear weapons state and regional power, it has the third largest standing army in the world and ranks sixth in military expenditure among nations. India is a constitutional republic governed under a parliamentary system. It is a pluralistic, multilingual and multi-ethnic society and is home to a diversity of wildlife in a variety of protected habitats. The name India is derived from Indus, which originates from the Old Persian word Hindu, the latter term stems from the Sanskrit word Sindhu, which was the historical local appellation for the Indus River. The ancient Greeks referred to the Indians as Indoi, which translates as The people of the Indus, the geographical term Bharat, which is recognised by the Constitution of India as an official name for the country, is used by many Indian languages in its variations. Scholars believe it to be named after the Vedic tribe of Bharatas in the second millennium B. C. E and it is also traditionally associated with the rule of the legendary emperor Bharata. Gaṇarājya is the Sanskrit/Hindi term for republic dating back to the ancient times, hindustan is a Persian name for India dating back to the 3rd century B. C. E. It was introduced into India by the Mughals and widely used since then and its meaning varied, referring to a region that encompassed northern India and Pakistan or India in its entirety
3.
States and union territories of India
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India is a federal union comprising twenty-nine states and seven union territories. The states and union territories are further subdivided into districts and further into smaller administrative divisions, the Constitution of India distributes the sovereign executive and legislative powers exercisable with respect to the territory of any State between the Union and that State. The Indian subcontinent has been ruled by different ethnic groups throughout its history. Between 1947 and 1950, the territories of the states were politically integrated into the Indian Union. The new Constitution of India, which came into force on 26 January 1950, the new republic was also declared to be a Union of States. The nine Part A states were Assam, Bihar, Bombay, Madhya Pradesh, Madras, Orissa, Punjab, Uttar Pradesh, and West Bengal. The eight Part B states were former princely states or groups of states, governed by a rajpramukh, who was usually the ruler of a constituent state. The rajpramukh was appointed by the President of India, the Part B states were Hyderabad, Jammu and Kashmir, Madhya Bharat, Mysore, Patiala and East Punjab States Union, Rajasthan, Saurashtra, and Travancore-Cochin. The ten Part C states included both the former chief commissioners provinces and some states, and each was governed by a chief commissioner appointed by the President of India. The Part C states were Ajmer, Bhopal, Bilaspur, Coorg, Delhi, Himachal Pradesh, Cutch, Manipur, Tripura, the only Part D state was the Andaman and Nicobar Islands, which were administered by a lieutenant governor appointed by the central government. The Union Territory of Puducherry was created in 1954 comprising the previous French enclaves of Pondichéry, Karaikal, Yanam, Andhra State was created on 1 October 1953 from the Telugu-speaking northern districts of Madras State. The States Reorganisation Act of 1956 reorganised the states based on linguistic lines resulting in the creation of the new states, as a result of this act, Madras State retained its name with Kanyakumari district added to from Travancore-Cochin. Andhra Pradesh was created with the merger of Andhra State with the Telugu-speaking districts of Hyderabad State in 1956, kerala was created with the merger of Malabar district and the Kasaragod taluk of South Canara districts of Madras State with Travancore-Cochin. The Laccadive Islands which were divided between South Canara and Malabar districts of Madras State were united and organised into the territory of Lakshadweep. Bombay State was enlarged by the addition of Saurashtra State and Kutch State, Rajasthan and Punjab gained territories from Ajmer and Patiala and East Punjab States Union respectively and certain territories of Bihar was transferred to West Bengal. Bombay State was split into the states of Gujarat and Maharashtra on 1 May 1960 by the Bombay Reorganisation Act. Nagaland was formed on 1 December 1963, the Punjab Reorganisation Act of 1966 resulted in the creation of Haryana on 1 November and the transfer of the northern districts of Punjab to Himachal Pradesh. The act also designated Chandigarh as a territory and the shared capital of Punjab
4.
Kerala
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Kerala historically known as Keralam, is an Indian state in South India on the Malabar Coast. It was formed on 1 November 1956 following the States Reorganisation Act by combining Malayalam-speaking regions, spread over 38,863 km2, it is bordered by Karnataka to the north and northeast, Tamil Nadu to the east and south, and the Lakshadweep Sea to the west. With 33,387,677 inhabitants as per the 2011 Census, Malayalam is the most widely spoken language and is also the official language of the state. The region has been a prominent spice exporter since 3000 BCE, the Chera Dynasty was the first prominent kingdom based in Kerala, though it frequently struggled against attacks by the neighbouring Cholas and Pandyas. In the 15th century, the spice trade attracted Portuguese traders to Kerala, after independence, Travancore and Cochin joined the Republic of India and Travancore-Cochin was given the status of a state in 1949. In 1956, Kerala state was formed by merging Malabar district, Travancore-Cochin, Hinduism is practised by more than half of the population, followed by Islam and Christianity. The culture is a synthesis of Aryan and Dravidian cultures, developed over millennia, under influences from other parts of India, the production of pepper and natural rubber contributes significantly to the total national output. In the agricultural sector, coconut, tea, coffee, cashew, the states coastline extends for 595 kilometres, and around 1.1 million people in the state are dependent on the fishery industry which contributes 3% to the states income. The state has the highest media exposure in India with newspapers publishing in nine languages, mainly English, Kerala is one of the prominent tourist destinations of India, with backwaters, beaches, Ayurvedic tourism and tropical greenery as its major attractions. The name Kerala has an uncertain etymology, One popular theory derives Kerala from Kera and alam is land, thus land of coconuts, this also happens to be a nickname for the state due to abundance of coconut trees and its use by the locals. The word Kerala is first recorded in a 3rd-century BCE rock inscription left by the Maurya emperor Ashoka, the inscription refers to the local ruler as Keralaputra, or son of Chera. This contradicts the theory that Kera is from coconut tree, at that time, one of three states in the region was called Cheralam in Classical Tamil, Chera and Kera are variants of the same word. The word Cheral refers to the oldest known dynasty of Kerala kings and is derived from the Proto-Tamil-Malayalam word for lake, the earliest Sanskrit text to mention Kerala is the Aitareya Aranyaka of the Rigveda. It is also mentioned in the Ramayana and the Mahabharata, the two Hindu epics, the Skanda Purana mentions the ecclesiastical office of the Thachudaya Kaimal who is referred to as Manikkam Keralar, synonymous with the deity of the Koodalmanikyam temple. Keralam may stem from the Classical Tamil cherive-alam or chera alam, the Greco-Roman trade map Periplus Maris Erythraei refers to Keralaputra as Celobotra. According to Hindu mythology, the lands of Kerala were recovered from the sea by the warrior sage Parasurama. Parasurama threw his axe across the sea, and the water receded as far as it reached, according to legend, this new area of land extended from Gokarna to Kanyakumari. The land which rose from sea was filled with salt and unsuitable for habitation, so Parasurama invoked the Snake King Vasuki, out of respect, Vasuki and all snakes were appointed as protectors and guardians of the land
5.
Kannur district
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Kannur District is one of the 14 districts along the west coast in the state of Kerala, India. The town of Kannur is the headquarters and gives the district its name. The old name, Cannanore is the form of the Malayalam name Kannur. Kannur district is bounded by Kasaragod District to the north, Kozhikode district to the south, to the east the district is bounded by the Western Ghats, which forms the border with the state of Karnataka. The Arabian Sea lies to the west, the district was established in 1957. Kannur is the sixth-most urbanized district in Kerala, with more than 50% of its residents living in urban areas, Kannur has an urban population of 1,212,898, which is the second largest in Kerala after Ernakulam district. Kannur District is known as the land of looms and lores, because of the loom industries, the district is a major centre of Theyyam, a ritual dance of northern Kerala. Small shrines known as kavus, associated with the Theyyam, dot the district, the proposed Kannur International Airport will be the fourth international airport in Kerala and is situated in Mattannur, 26-km away from Kannur. There are many myths and legends associated with the name Kannur and it is said to be a portmanteau derived from two Malayalam words, ‘Kannan’, and ‘Ur’, making it the place of Lord Krishna. One theory supporting this theory is that the deity of the Kadalayi Srikrishna Temple was originally installed in a shrine at Kadalayi Kotta in the part of the present Kannur town. During the British Raj, the city was known as Cannanore, Kannur was an important trading center in the 12th century with active business connections with Persia and Arabia. It served as the British military headquarters on Indias west coast until 1887, in conjunction with her sister city, Tellicherry, it was the third largest city on the western coast of British India in the 18th century after Bombay and Karachi. St. Angelo Fort was built in 1505 by Dom Francisco de Almeida and they modernised the fort and built the bastions Hollandia, Zeelandia and Frieslandia that are the major features of the present structure. The original Portuguese fort was pulled down later, a painting of this fort and the fishing ferry behind it can be seen in the Rijksmuseum Amsterdam. The Dutch sold the fort to king Ali Raja of Arakkal in 1772, the British conquered it in 1790 and used it as one of their major military stations on the Malabar Coast. During the 17th century, Kannur was the city of the only Muslim Sultanate in the malabar region. During the British Raj, Kannur was part of the Madras province in the North Malabar District, the guerrilla war by Pazhassi Raja, the ruler of Kottayam province, against the British had a huge impact in the history of Kannur. Changes in the socio-economic and political sectors in Kerala during the decades of 20th century created conditions congenial for the growth of the Communist Party
6.
Postal Index Number
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A Postal Index Number or PIN or Pincode is a code in the post office numbering or post code system used by India Post, the Indian postal administration. The code is six digits long, the PIN Code system was introduced on 15 August 1972 by Shriram Bhikaji Velankar, an additional secretary in the Union Ministry of Communications. The system was introduced to simplify the manual sorting and delivery of mail by eliminating confusion over incorrect addresses, similar place names, there are nine PIN zones in India, including eight regional zones and one functional zone. The first digit of the PIN code indicates the region, the second digit indicates the sub-region, and the third digit indicates the sorting district within the region. The final three digits are assigned to individual post offices, a state may have one or more sorting districts depending on the volumes of mail handled. The fourth digit represents the route on which a Delivery office is located in the sorting district and this is 0 for offices in the core area of the sorting district. The last two represent the delivery office within the sorting district starting from 01 which would be the GPO or HO. The numbering of the office is done chronologically with higher numbers assigned to newer delivery offices. If the volume of mails handled at an office is too large, a new delivery office is created. Thus two delivery offices situated next to each other only have the first four digits in common. Each PIN code is mapped to exactly one delivery post office which receives all the mail to be delivered to one or more lower offices within its jurisdiction, all of which share the same code. The delivery office can either be a General Post Office, a Head Office or Sub Office which are located in urban areas. The post from the office is sorted and routed to other delivery offices for a different PIN or to one of the relevant sub offices or branch offices for the same PIN. Branch offices are located in areas and have limited postal services
7.
Vehicle registration plate
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A vehicle registration plate, also known as a number plate or a license plate, is metal or plastic plate attached to a motor vehicle or trailer for official identification purposes. The registration identifier is a numeric or alphanumeric ID that uniquely identifies the owner within the issuing regions database. The first two letters indicate the state to which the vehicle is registered, the next two digit numbers are the sequential number of a district. Due to heavy volume of vehicle registration, the numbers were given to the RTO offices of registration as well, the third part indicates the year of registration of the vehicle and is a 4 digit number unique to each plate. In some countries, the identifier is unique within the entire country, whether the identifier is associated with a vehicle or a person also varies by issuing agency. In the vast majority of jurisdictions, the government holds a monopoly on the manufacturing of vehicle registration plates for that jurisdiction. Thus, it is illegal for private citizens to make and affix their own plates. Alternately, the government will merely assign plate numbers, and it is the owners responsibility to find an approved private supplier to make a plate with that number. In some jurisdictions, plates will be assigned to that particular vehicle for its lifetime. If the vehicle is destroyed or exported to a different country. Other jurisdictions follow a policy, meaning that when a vehicle is sold the seller removes the current plate from the vehicle. Buyers must either obtain new plates or attach plates they already hold, as well as register their vehicles under the buyers name, a person who sells a car and then purchases a new one can apply to have the old plates put onto the new car. One who sells a car and does not buy a new one may, depending on the laws involved, have to turn the old plates in or destroy them. Some jurisdictions permit the registration of the vehicle with personal plates, in some jurisdictions, plates require periodic replacement, often associated with a design change of the plate itself. Vehicle owners may or may not have the option to keep their original plate number, alternately, or additionally, vehicle owners have to replace a small decal on the plate or use a decal on the windshield to indicate the expiration date of the vehicle registration. Plates are usually fixed directly to a vehicle or to a frame that is fixed to the vehicle. Sometimes, the plate frames contain advertisements inserted by the service centre or the dealership from which the vehicle was purchased. Vehicle owners can also purchase customized frames to replace the original frames, in some jurisdictions licence plate frames are illegal
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