List of Longest, Largest, Biggest, Smallest, Tallest and Highest in India–
● Longest river
● The longest tributary river of India
● The longest river of the south
● Highest mountain peak
● Largest lake (Fresh water)
● Highest Dam
● Largest Mosque
● Longest Road
● State with longest coastline
● Longest railway route
● Longest tunnel
● Longest national highway
● Longest Bridge
● Longest Dam
● Longest River Bridge
● Longest populated City
● Largest Museum
● Largest Delta
● Largest Dome
● Largest Zoo
● Largest man-made Lake
● Largest Desert
● Highest Tower
● Smallest State (Area)
● Smallest State (Population)
● Highest Waterfall
● Longest Electric railway line
● Densest populated State
● Largest cave temple
● Largest animal Fair
● Highest Gateway
● Biggest Hotel
● Largest State (Area)
● Largest State (Population)
● Place of heaviest rainfall
● Largest corridor
● Largest cantilever span bridge
● Largest forest state
● Highest straight gravity Dam
● Longest Railway Platform
● Largest Stadium
● Largest Port
● Highest Lake
● Largest Lake (Saline Water)
● Highest Award
● Highest Gallantry Award
● Largest Gurudwara
● Deepest river valley
● State with longest coastline of south India
● Longest river which forms estuary
● Largest Church
● Longest Beach
● Highest Battle field
● Highest Airport
● Largest River Island
● Largest Planetarium
Ganges
Yamuna
Godavari
Godwin Austin (K2)
Wular lake (Kashmir)
Bhankra Dam (Punjab)
Jama Masjid, Delhi
Grand Trunk Road
Gujarat
From Jammu to Kanya Kumari
Jawahar tunnel (Jammu & Kashmir)
NH-7 which runs from Varanasi to Kanyakumari
PVNR Expressway, Hyderabad (11,600 m)
Hirakud Dam (Odisha)
Mahatma Gandhi Setu, Patna
Mumbai (1.60 crore)
National Museum, Kolkata
Sunderban Delta, West Bengal
Gol Gumbaz, Bijapur (Karnataka)
Zoological Gardens, Alipur, Kolkata
Nagarjun Sagar Dam
Thar (Rajasthan)
Pitampura Tower, Delhi
Goa
Sikkim
Gersoppa waterfall (Karnataka)
From Delhi to Kolkata via Patna
West Bengal
Kailash temple, Ellora (Maharashtra)
Sonepur (Bihar)
Buland Darwaza, Fatehpur Sikri (Agra)
Oberai-Sheraton (Mumbai)
Rajasthan
Uttar Pradesh
Mausinram (Meghalaya)
Rameshwaram temple corridor (Tamil Nadu)
Howrah Bridge (Kolkata)
Madhya Pradesh
Bhakra Dam
Kharagpur (West Bengal)
Salt lake (Yuva Bharti), Kolkata
Mumbai
Devatal (Garhwal)
Chilka Lake, Odisha
Bharat Ratna
Paramveer Chakra
Golden Temple, Amritsar
Bhagirathi & Alaknanda
Andhra Pradesh
Narmada
Saint Cathedral (Goa)
Marina Beach, Chennai
Siachin Glacier
Leh (Laddakh)
Majuli (Brahmaputra River, Assam)
Birla Planetarium (Kolkata)

Vrindavan Chandrodaya Mandir is the world's tallest temple under-construction at Vrindavan, Mathura, India.