Deccan Chargers defeated Pune Warriors by 18 runs to achieve their first victory in the fifth edition of the Indian Premier League here at the Subrata Roy Sahara Stadium on Thursday. The Chargers who never won any match prior to this now finally recorded their maiden win after five successive losses in the tournament. Chasing 178, the Warriors could reach 159-7 in the allotted 20 overs. Their main scorers were Robin Uthappa (29), Steven …