Surveys will not provide lines or benefits. Instead, we should ask for expediting Harapanahalli Hospet line which is already laid and waiting for clearance by authorities.
Lot of survey reports are available for many projects in Karnataka. Few are
TK-Rayadurga
TK-Chitradurga-Davanagere
CMGR-Sakleshpur...
more...
SMET-Harihar
SMET-Ranebennur
BGM-KOP-Karad
Kudachi-Bagalkot
Wadi/ Shahabad-Bijapur
Koppal-Raichur (I think some progress is there)
Hubli-Ankola
Talaguppa-Honnavara
All these lines are pending. What is the use of one more survey report with meagre Rs. 5 Lakhs or Rs. 10 Lakhs per year for each line? It will take one century to build.