"We have good wicketkeepers like Parthiv Patel and Deep Dasgupta. But in the ODIs, we have to continue with Rahul because of his batting prowess," Ganguly said in Kolkata.
Ganguly, after playing two good series in Australia and in Pakistan seemed fully prepared to do well in the coming Asia Cup in July in Colombo.
"We are well geared up for the tournament," he said.
On International Cricket Council's (ICC) ban on Muttiah Muralithraran's 'doosra', Ganguly said, the decision would not affect the performance of the world's highest wicket-taker.
"Even if he does not get to bowl the 'doosra', his performance will remain the same," Ganguly said.
On Australia's coming to trip to India later this year, the skipper said, "it will be a good contest, and whichever team plays well, will win."
When asked to react to Aussie pacer Brett Lee's assertion that the Kangaroos wished to fulfil former skipper Steve Waugh's unrealised dream of beating India on Indian soil in Tests under the captaincy of incumbent Ricky Ponting, Ganguly replied "We have done well against them in Tests in recent times."
But he admitted that the Indians needed to catch up with the Aussies in the shorter version of the game.
"We have been losing to them for the last one and half years in the finals. We have to catch up with them," Ganguly said.
He also expressed satisfaction with Zaheer Khan's decision to have a brief stint with the English County Surrey.
"The two matches he is scheduled to play, will benefit him immensely. He has been out of top level cricket for some time, and the Surrey stint will help him to make a comeback," he added.