Bharat Sanchar Nigam [BSNL] — High Ping Issue

Address:

403114

I'm Bsnl BB user Plan 545UL residing in Goa
recently ive been facing issue of high ping while in game cs 1.6 to the host 202.179.65.11 which is located in Mumbai.
i was getting avg ping of 65 during non peak hours by restarting the modem several time till i was assigned to 59.xx.xx.xx series IP
but since last week the Pings have reached to mid 3 digits number with constant assigned 117.xxx.xxx.xx series even after restarting modem over 10 times
please change my route so that i get assigned back on 59.xx.xx.xx series and get lower ping responses