Chasing a modest 224, West recovered from an early hiccup with a crucial 96-run stand for third wicket between Dheeraj and Martin and romped home with 2.3 overs to spare. This was West's second successive win the tournament after their victory on the Central Zone.
Earlier East, who had lost their match against North Zone, made a horrible start and slumped to 30 for two with Munaf Patel removing opener Subhashish Das (2) and Avishkar Salvi scalping rival captain Deep das Gupta (7).
Determined to make his mark, Team India discard Sourav Ganguly stood tall as wickets continued to fall regularly on the other end.
While Rohan Gavaskar (11) found himself short of crease, offie Romesh Powar did Rajiv Kumar (10) in to make it 76 for four in 26th over.
Ganguly started off cautious note but soon got out of his shell and played strokes all over the park. His 81 came in 146 balls and were studded with seven boundaries and a six.
The southpaw put on an 83-run stand for the fifth wicket with Manoj Tiwari (55, four boundaries) while Laxmi Ratan Shukla slogged 42 (4x6, 6x1) in just 21 balls to help East achieve a respectable total.