Longest,Largest,Highest in India

The Longest River	The Ganga (2525km)
The Longest Canal	Indira Gandhi Canal or Rajasthan Canal (Rajasthan)
The Longest Dam	Hirakud Dam (Odisha)
The Largest Lake	Wular Lake (Jammu & Kashmir)
The highest Dam	Tehri dam (Uttarakhand)
The highest Waterfall	Jog or Gersoppa (Karnataka)
The State with longest Coastline	Gujarat
The longest Sea Bridge
The longest Road	Grand Trunk Road (Kolkata to Delhi)
The highest Pass (मार्ग )	Road at Khardungla (in Leh-Manali Sector)
The highest Airport	Leh Airport (Ladakh)
The largest Desert	Thar (Rajasthan)
The largest Delta	Sunderbans (West Bengal)
The largest Zoo
The tallest TV tower
The highest Peak	Kangchenjunga
The largest Mosque	Jama Masjid
The tallest Statue	Gomateswara (Karnataka)
The oldest Church	St Thoma Church at Palayoor, Trichur (Kerala)