Environment Bengaluru Buzz: City up in Swachch Survekshan, Smart City rankings | SC sets aside NGT’s order on green buffer zones | Varthur Lake froths … and more March 9, 2019 News Desk Improved Swachh Survekshan rankings, FIR filed against BWSSB, relaxation in lake buffer zone – here is the latest from Bengaluru in our weekly recap