Bangalore Development Authority [Bda] — fused street light from 4 months

Street lights in our road, 6th block smv layout ullal near post office is not working since 3-4 months. Contacted concerned authority and sir m vishweshwaria association but no positive response and had a total irresponsible reply. It has been very difficult due to this street light issue especially during night.
Please do the needful as soon as possible.