Opener Gautam Gambhir slammed his seventh Test hundred as India continued to fight back, reaching 256 for three at lunch on the fifth and final day of the first Test against Sri Lanka on Friday.

Resuming at 190 for two, India lost nightwatchman Amit Mishra just after 45 minutes of play before Gambhir reached his fourth hundred at home in the company of Sachin Tendulkar with a glanced boundary off Angelo Mathews.