Tamil Nadu State Transport Corporation [TNSTC] — To hire a bus for center of city like anna nagar

From mathur chennai 68 there is no proper bus for center of city .there are only few buses are running continueously like 121 group, 64c. to reach the center of city its taking 3 buses hardly its too difficult for college student like me. So kindly arrange a bus to center of city like lic or thousands light or teynampet