Darwin: Young leg-spinner Karn Sharma's all-round exploits helped India 'A' eked out a thrilling one-wicket victory over South Africa 'A' to reach closer to the title round in the Quadrangular 'A' series here on Saturday.

Batting first, South Africa 'A' scored 275-8 in 50 overs with Rilee Russouw scoring 137 off 150 balls.