It is widely recognised that seismic repair and retrofitting is a fast and economical solution when compared to large scale reconstruction, in densely populated regions exposed to seismic hazard. Moreover, in post-earthquake situations, it provides a way to address existing damaged structures that may be salvageable but that are unsafe for occupation in their current condition.
Report
https://www.hrrpnepal.org/hrrp-reference-library/partner#
GSDRC
2016