After getting a pair in Chittagong, Wasim Jaffer smashed unbeaten 138 and his opening partner Dinesh Karthik 82 not out off 153 balls before both leaving the field with cramps on a hot and humid day to help India amass 326 without loss at stumps.

Skipper Rahul Dravid was batting just 12 runs short of a century while master batsman Sachin Tendulkar (9 off 31 balls) accompanied him after the home captain had inserted the tourists erroneously on a placid wicket.

Despite overcast condition and a wet outfield following heavy overnight rain, the pitch hardly produced anything for the bowlers.

The Tigers' strategy of fielding three seamers including Mohammad Sharif, who played Test cricket after a gap of five years replacing cold-hit paceman Shahadat Hossain, simply backfired.

It was hard work in extreme conditions but under-pressure Jaffer and in-form Karthik stuck to the basics to end the first session on 67 in 26 overs before being separated on the total of 175.

In the sight of his maiden Test hundred, the 21-year old Karthik limped off the ground on the stroke of tea.

Karthik built his innings with some eye-catching shots including successive boundaries through extra-cover off ace left-arm spinner Mohammad Rafique to complete his fourth fifty in 13 matches.

He, however, was lucky twice. First not to be taken at slip by Shakib Al Hasan off Syed Rasel when on 10 and then Australian umpire Daryl Harper ignored a thin edge off an upper-cut to wicketkeeper Khaled Mashud off Sharif on 74. Karthik struck a dozen fours in his nearly four-hour stay.

His senior partner Jaffer too retired after tea due to dehydration but before that, the Mumbai right-hander buried the nightmarish experience in the Chittagong Test. He was also fortunate not to get dismissed in the second ball of the post-lunch session when Rafique floored a simple return catch.

On way to his fourth hundred, the 29-year-old not only played the sheet-anchor role but also sweetly flicked and executed the on-drive against a buffet bowling.

Having reached the half-century with an excellent pull in 101 balls, he geared up to race to the 100-mark in 185 deliveries, on-driving Rafique for his 13th boundary.

During his five and half-hour essay, the he faced 229 balls featuring 17 fours.

His departure on 281 brought Tendulkar, who virtually played second fiddle to Dravid (88 off 131 deliveries) in the last hour to make sure Bangladesh remain wicketless for the second time in Test cricket after failing to dismiss any opposition batsman on the second day of the Chittagong Test against South Africa in April 2003.

It were Jacques Rudolph and Boeta Dippenaar, who batted throughout the second day adding 280 runs in 90 overs during the highest ever stand against Bangladesh, an unbroken 429 for the third wicket.

The Indian captain cracked eleven fours and the only six of the day -- a dead straight drive against Mohammad Ashraful -- to bring the 300.