HIGHEST LARGEST LONGEST AND SMALLEST IN INDIA

          ........India.............

HIGHEST IN INDIA :

Highest peak - Mt.  Kangchenjunga
Highest water falls - Jog falls (Karnataka)

Highest gate way - Buland Darwaza (Fathepur sikri)
Highest literacy among state - Kerala
Highest tower - Qutab minar
Highest dam - Tehri
Highest multiple arch dam - Idukki (Kerala)

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

LONGEST IN INDIA : 
Longest Canal - Indira Gandhi canal
Longest River - Ganga
Longest Tunnel - J&K
Longest Dam - Hirakud (Orissa)
Longest National Highway- N.H. 7
Longest Railway platform - Gorakhpur(Utterpradesh)
Longest Corridor - Rameswaram Temple corridor
Longest Hanging bridge - Howra bridge
Longest Train Service - Vivek express
Longest Bridge - Anna Indira(Rameswaram to Mandap)
Longest Glacier - Siachen Glacier
Longest River bridge - Mahatma Gandhi Sethu

SMALLEST IN INDIA : 
Smallest state (Area) - Goa
Smallest state (population) - Sikkim
Smallest state (forest area) - Haryana 
Smallest Union Territory - Lakshadweep