Superlative

Location

Biggest Cantilever Bridge & Busiest Bridge

Rabindra Sethu (also called Howrah Bridge on Hooghly river in Kolkata(457m/1499ft long.)

Biggest Fort

Red Fort ,Delhi

Biggest stadium 

Salt Lake Stadium, in Bengali called Yuva Bharati (Kolkata, West Bengal); capacity: 120,000

Busiest airport

Indira Gandhi International Airport Delhi

Coldest Place

Dras, Jammu & Kashmir

Fastest Train

Shatabdi Express between New Delhi  and Bhopal (it runs 150 kmph from Delhi to Agra; next Agra to Bhopal runs at 140kmph)

First complete Banking District

Palakkad ,Kerala

First district with 100% e-literacy

Malappuram, Kerala

First District with 100% literacy

Ernakulam, Kerala

First I.T district

Palakkad, Kerala

First inter-linked rivers

Ken-Betwa (UP-MP)

First wireless Internet connectivity city

Mysore ,Karnataka

Highest  Airport

Kushok Bakula Rimpochhe Airport, Leh airport in Ladakh(3256m /16080ft high)

Highest battle field

Siachen Glacier

Highest civilian Award

Bharat Ratna

Highest dam

Tehri Dam on Bhagirathi River, near Tehri, Uttarakhand.

Height: 260.5 m (855 ft); Length: 575 m (1,886 ft)

Highest female literacy rate

Jain (90.6%)

Highest gallantry award 

Param Vir Chakra

Highest gateway

Buland Darwaza at Fatehpur Sikri near Agra, Built by Akbar (53.5 m/175ft high)

Highest Hydel Power station

Rongton Hydel Project in Kinnaur district of Himachal Pradesh

Highest literacy rate religion

Jain 94.1%)

Highest Mountain peak

Kanchenjunga(Sikkim)(8598 m)(Initially K2 was the highest mountain peak in India. But now it is in POK)

Highest population growth rate Religion

Muslim(29.3%)

Highest precipitation 

Mawsynram, Meghalaya

Highest Road

Road at Khardung in the Leh-Manali Sector

Highest Tower(Minaret)

Qutb Minar, Delhi

Highest Waterfall

Jog Waterfalls,(on Sharavathi river,292 metres) Karnataka

Largest  Auditorium

Sri Shanmukhananda hall, Mumbai

Largest animal fair

Sonepur Mela, Patna, Bihar.

Largest Botanical Garden

National Botanical Garden, Kolkata                                            

Largest Cave

Amarnath (about 44 km from Pahalgam in Jammu and Kashmir)

Largest Cave Temple

Ellora Temples, Aurangabad, Maharashtra.

Largest Church

Se. Cathedral at old Goa, 10 km from Panaji.

Largest Cinema hall

Thangam (Madurai)

Largest city (Area Wise)

Kolkata

Largest Concentration  of Scheduled Tribes

Madhya Pradesh

Largest concentration of  Scheduled Caste population

Uttar Pradesh has the largest Scheduled Caste population

Largest Delta

Sunderbans (75,000 sq. km) formed by the Ganga and Brahmaputra rivers in West Bengal and Bangladesh.

Largest Desert

Thar or  Great Indian Desert, Rajasthan.

Largest district

Ladakh, Jammu & Kashmir

Largest District (Population)

Medinipur(west Bengal)

Largest dome 

Gol Gumbaz , Bijapur, Karnataka, Diameter : 44.0 m

Largest Fresh Water Lake

Kolleru in Andhra Pradesh

Largest Gurudwara

Golden temple, Amritsar, Punjab

Largest Lake

Wular lake, Jammu & Kashmir

Largest Library 

National Library, Kolkata

Largest manmade lake

Govind Sagar, Bhakra, Haryana

Largest Mosque

Jama Masjid , Delhi(built by shah jahan in 1644-58)

Largest Museum

Indian Museum, Kolkata

Largest Ocean island

Middle Andaman

Largest Planetarium

Birla Planetarium, Kolkata

Largest Plateau

Deccan Plateau

Largest prison

Tihar Jail ,Delhi

Largest Public Sector Bank

State Bank of India

Largest Public Sector employer

Indian Railways

Largest Residence

Rashtrapati Bhavan, New Delhi

Largest River Bridge

Farakka Barrage , Kolkata(7,363.6ft)

Largest river Island

Majuli, Brahmaputra river, Asom

Largest scheduled caste community

Chamar

Largest state in area

Rajasthan(3,42,239 sq.km)

Largest Tribe (ST)

Gond

Largest Union  Territory in Area

Andaman and Nicobar islands(8,249 sq.km)

Largest Zoo

Zoological Gardens, Alipore, Kolkata

Least densely populated State

Arunachal Pradesh

Least populated state

Sikkim (607,688: 2011 census)

Least Populated Union Territory

Lakshadweep(64,429)

Longest beach

Marina beach, Chennai(13km)

Longest Canal

Indira Gandhi Canal or Rajasthan Canal(959 km long)

Longest Corridor 

Corridor in Ramanathaswamy Temple at Rameswaram Tamilnadu (1220M/4002 FT)

Longest Dam

Hirakud Dam on Sutlej river in Orissa(24.4km long and 2.8 km wide)

Longest Delta

Sunderbans (75000 sq.  km ) formed by the Ganga and Brahmaputra   in  West Bengal and Bangladesh.

Longest Glacier

Siachen Glacier on the Indo - Pak border(75.6kmlong and 2.8km wide)

Longest national Highway 

NH-7 (Varanasi to Kanyakumari)

Longest Passenger Train Route 

Jammu Tawi-Kanyakumari(3730km)

Longest railway bridge

Dehri-on-Sone Railway bridge over the Sone river near Sasaram on Kolkata -Delhi main line 

Longest railway platform

Kharagpur in West Bengal (833m/2733ft) also world's longest

Longest River

The Ganga 2640km long(it runs 2525km long in India)

Longest River bridge 

Bandra–Worli Sea Link(5,600m/18,400 ft.), Mahim bay, Mumbai.        

Previously it was Mahatma Gandhi Setu over the Ganga at Patna (5575m/18286ft)

Longest Road 

Grand Trunk Road from Kolkata to Amritsar

Longest Road Bridge

Nehru Sethu on Son river ,Bihar (10,044ft)

Longest Sea bridge

Anna-Indira Gandhi Bridge, connecting the island of Rameswaram with Mandapam in Tamil Nadu(2.34km long)

Lowest female literacy rate 

Muslim

Lowest literacy rate religion

Muslim

Lowest population growth rate religion

Sikh 

Maximum forest area

Madhya Pradesh

Maximum forest area in %

Mizoram

Most Densely populated state

West Bengal(904sq.km)

Most populated State

Uttar Pradesh (199,281,477: 2011 census) 

Most populated union Territory

Delhi (16,753,235)

Most Populous City

Mumbai (nearly  183 lakhs )

Oldest  Refinery

Digboi(Asom) it discovered in 1835

Oldest Church

St. Thomas Church  at Palayar in Trichur district in Kerala built in 52 AD.

Oldest Monastery

Buddhist Monastery situated at an altitude of 3048m/10000 ft at Tawang in Arunachal Pradesh.

Oldest observatory

Jantar Mantar, Delhi

Oldest University

University of Calcutta 1857

Oldest Zoo 

Trivandrum Zoological  gardens, Kerala(1859)

Smallest District

Mahe, Puducherry

Smallest district

Yanam in population, Puducherry

Smallest state in area

Goa(3,702sq.km)

Smallest Union Territory  in  Area

Lakshadweep(32 sq.km)

State  having  highest literacy rate

Kerala

State with highest Cattle  Population

Uttar Pradesh

Tallest Statue 

Statue of Gomateswara at  Sravanabelagola, Karnataka

The largest Hindu temple  area 

Akshardham, Delhi

Union Territory having highest literacy rate

Lakshadweep