Khardaha is a city and a municipality of North 24 Parganas district in the Indian state of West Bengal. It is close to Kolkata and also a part of the area covered by Kolkata Metropolitan Development Authority (KMDA).Khardaha is greater Kolkata.

North 24 Parganas (abv. 24 PGS (N)) or sometimes North Twenty Four Parganas is a district in southern West Bengal, of eastern India. North 24 Parganas extends in the tropical zone from latitude 22° 11′ 6″ north to 23° 15′ 2″ north and from longitude 88º20' east to 89º5' east. Barasat is the district headquarters of North 24 Parganas. North 24 Parganas is West Bengal's most populous district and also (since 2014) the most populated district in the whole of India. It is the tenth-largest district in the State by area.