Tamil Nadu State Transport Corporation [TNSTC] — Drivers are not stopping in their respective bus drops and no frequent buses during a specific time.

I go to Ramanujam IT Park, chennai by 9am daily from Anna university stopping, chennai. Before days I frequently get buses of 19 series. But now a days there are no buses at that time. 19 bus comes by 9 30- 9 40am but the driver stops the bus 10-50 meter away from the bus stop. In a metropolitan high tech city I'm suppose to wait for 45 mins to get a bus. Kindly take action against it.