M/ R to GPRA at Lower Summer Hill Shimla during 2024- 25. SH:- Provision of plum concrete retaining wall to retain the earth slope at road near M. I. Room at Lower Summer Hill Shimla ( H. P. ) M/ R to GPRA at Lower Summer Hill Shimla during 2024- 25. SH: Provision of plum concrete retaining wall to retain the earth slope at road near M. I. Room at Lower Summer Hill Shimla ( H. P. )