Gautam Gambhir, 149 not out overnight, soon reaches his 150 as he and VVS Laxman continue to make the Aussies toil in Delhi

Australian captain Ricky Ponting endures a frustrating time as the tourists fail to gain a breakthrough before lunch

Close, but no cigar - Matthew Hayden at slip drops Gambhir on 176 after the left-hander edges a delivery from Cameron White

After a nervy period on 99, Laxman hits a beautiful cover-drive off White to the fence to record his sixth Test century against Australia

India take lunch on a dominant 393-3 and White can be forgiven if his focus is not entirely on the job in hand

Gambhir is congratulated by Brett Lee after becoming the first left-handed opener to score a double-century in a Test against Australia

Eventually Gambhir departs, bowled off the inside edge off the bowling of Shane Watson, with exhaustion a possible factor

There's a rare failure for an Indian batsman when Simon Katich removes Sourav Ganguly for just five

But Laxman is determined to reach his 200, which he does, prompting India's declaration on 613-7. Fifteen overs remain in the day

Matthew Hayden, having endured a run of failures in the first two Tests, helps steer Australia to 50-0 at stumps, but India's spinners could be a threat on Friday on a pitch beginning to take turn