Virat Kohli scored an unbeaten half-century Monday as India\'s batting stars failed on a rain-interrupted opening day of a three-day tour match against a Chairman\'s XI at Manuka Oval in Canberra. The young right-hander finished the day unbeaten on 55 off 93 balls as the tourists reached 162 for four off 50 overs in their final match ahead of the opening Boxing Day Test against Australia in Melbourne. At stumps Rohit Sharma was 38 not out after being dropped on his first ball. But while Kohli and Sharma shared an unbroken fifth wicket stand of 78 off 104 balls, India\'s front-line batsmen Virender Sehwag (12), Gautam Gambhir (24) and VVS Laxman (15) all missed out on a big score ahead of the MCG Test. Sehwag smashed the highest score in one-day cricket with 219 off 139 balls earlier this month against the West Indies, but he only lasted 12 balls before falling in the day\'s fourth over. He played back to paceman Peter George and was caught out in the gully. Fellow opener Gambhir batted for 87 minutes before he was bowled out by Jason Behrendorff as he attempted to work the ball only to miss. Laxman, who averages 55.58 in 25 Tests against Australia and has scored four centuries Down Under, was also out bowled after he tried to work a Jon Holland ball to the leg-side. The incoming Sharma was dropped next ball in Holland\'s over as he pushed forward and edged to short leg. Ajinkya Rahane was the fourth Indian wicket to fall for 15, caught by Australian Test batsman Usman Khawaja at slip off Josh Lalor for 15 off 35 balls. India went into the final warm up game without key batsmen Sachin Tendulkar and Rahul Dravid, while injured paceman Ishant Sharma was also missing. George (1-42), Behrendorff (1-8), Lalor (1-9) and Holland (1-37) all kept things tight for the Chairman\'s team. No play was possible before lunch after overnight and morning rain and there was another lengthy stoppage in the afternoon.