53.
Assertion (A): Uttar Haryana Bijli Vitran Nigam Limited and Dakshin Haryana Bijli Vitran Nigam Limited are two corporate bodies of erstwhile Haryana State Electricity Board.
Reason (R): Haryana State Electricity Board was split into two separate bodies in 1999.

57.
Match the following.
List I List II
a. Gold 1. Ambala
b. Dolomite 2. Mahendragarh
c. China clay 3. Gurugram
d. Flexible Sandstone 4. Charkhi-Dadri