INS Sudarshini is a sail training ship built by Goa Shipyard for the Indian Navy. The ship is a sister ship of INS Tarangini which was commissioned in 1997. "Sudarshini" means "beautiful lady Sundari" after the younger half-sister of Buddha. The ship was designed by Colin Mudie, a naval architect and yacht designer from the United Kingdom.

INS Tarangini is a three-masted barque, commissioned in 1997 as a sail training ship for the Indian Navy. She is square rigged on the fore and main masts and fore-and-aft rigged on the mizzen mast. She was constructed in Goa to a design by the British naval architect Colin Mudie, and launched on 1 December 1995. In 2003–04, she became the first Indian naval ship to circumnavigate the globe.