Dear Student,
1. The Standard Meridian of India 82 degree 30'E passes through (c) Mirzapur in Uttar Pradesh. This is standard time for whole country.
2. (b) Lakshadweep, as kavaratti is the capital of Lakshadweep.
3. (a) Terai
4. (d) Finding rocks in the interiors of the Earth.
Regards