List of Largest in India

Largest aircraft carrier→INS Viraat
Largest animal fair→Sonepur fair (Bihar)
Largest arch dam→Idukki dam (Kerala)
Largest cave temple→Ellora (Maharashtra)
Largest church→St. Cathedral (Old Goa)
Largest cinema theatre→Thangam Theatre
Largest desert→Thar (Rajasthan)
Largest dome→Gol Gumbaz (Karnataka)
Largest exhibition ground→Pragati Maidan (New Delhi)
Largest fresh water lake→Kolleru (Andhra Pradesh)
Largest G.P.O→Mumbai G.P.O
Largest gurudwara→Golden Temple (Amritsar)
Largest landing ship -
→INS Magrar
Largest library
→National library (Kolkata)
Largest monastery
→Tawang monastery (Arunachal Pradesh)
Largest mosque
→Jama Masjid (New Delhi)
Largest museum
→Indian museum (Kolkata)
Largest Ocean Island
→Middle Andaman
Largest open university
→Indira Gandhi Open University (New Delhi)
Largest planetarium
→Birla planetarium (Kolkata)
Largest plateau
→Deccan plateau
Largest populated city
→Mumbai
Largest populated state
→Uttar Pradesh
Largest prison
→Puzhal Jail (Chennai)
Largest residence
→
Rashtrapati Bhavan
Largest river Barrage
→
Farakka Barrage
Largest river in South India
→
Godavari
Largest river Island
→
Majuli (Brahmaputra)
Largest salt water lake
→
Chilka (Orissa)
Largest state
→
Rajasthan
Largest union territory
→
Andaman Nicobar Islands
Largest zoo
→
Zoological Garden (Kolkata)