India take on Australia in the fourth and final test at the Feroz Shah Kotla in Delhi tomorrow. Although the Indians had wrapped up the series 3-0 in Mohali, one can be certain they will be keen to send the Kangaroos packing without a win on the tour. Skipper Mahendra Singh Dhoni is expected to keep the winning combination, but Suresh Raina will replace injured Shikhar Dhawan who had a sensational debut in Mohali. Ajinkya Rahane could be in line to feature in Delhi as an opener. The rest of the side is expected to remain the same. All India Radio will broadcast live commentary of the match on Rajdhani Channel, FM Gold and additional frequencies from 9 a.m. tomorrow. Rest of days, the commentary can be heard from 9.20 a.m. Cricket updates will also be put out every hour from 9.45 a.m.