India gained the early advantage in the one-day series with Pakistan thanks to a five-wicket win in Guwahati.
Skipper Mahendra Singh Dhoni top-scored with 63 as the home side comfortably reached their target with four overs to spare.
Yuvraj Singh chipped in with 58 at the Nehru Stadium which was staging the first of five matches between the two rival nations.
Pakistan had been indebted to an unbeaten 83 from Mohammad Yousuf for getting up to 238-7 from their 50 overs after winning the toss and choosing to bat first.
Yousuf's 88-ball knock included seven fours and saw him share important stands of 59 with Shahid Afridi (31) and 68 with Misbah-ul-Haq (27).
Salman Butt had managed to get the tourists off to an excellent start with an even 50 before they lost their way in the middle overs, slipping from 69-1 to 165-5.
Harbhajan Singh had bogged down the middle order, the spinner getting through his 10 overs at a cost of just 29 runs and also picking up the wicket of Younus Khan.
Murali Karthik also bowled tidily, giving away 36 runs in his spell, while India's cause was helped by Butt being run out when he tried to pinch a single to Yuvraj at cover.
India's reply got off to a bad start when opener Sachin Tendulkar fell in the third over with the score on just 14.
Shoaib Akhtar struck the early blow, deceiving 'The Little Master' with a slower ball that trapped the batsman walking across his crease in front of his stumps.
Gautam Gambhir could have followed soon after, twice edging towards the slips only to get a repreive as Pakistan failed to take their chances.
He made the most of the lucky escape, building a second-wicket stand of 82 before partner Sourav Ganguly was needlessly run out for 39.
Ghambir followed for a 51-ball 44 soon after, leaving it to Dhoni and Singh to forge the match-winning partnership.
However, neither batsman managed to see it through to the finish, Singh the first to go when he heaved Abdur Rehman out to Afridi on the square leg boundary.
Dhoni also failed to get to the finishing line as a heavy-footed drive only resulted in giving a catch behind and a second wicket to Shoaib.