Bengaluru: Confusion over approvals for a BWSSB sewage treatment plant (STP) expansion at Saul Kere near Bellandur has exposed a lack of coordination between agencies responsible for works in and around the city’s lakes. Bengaluru: Work on the expansion of a Bangalore Water Supply and Sewerage Board (BWSSB) sewage treatment plant (STP) within the premises of Saul Kere, a key lake near Bellandur’s technology.