"It's really great to see him bat in full flow once again. I'm not surprised that he's back again. He has 200 per cent chance to make a return," Ganguly said.
The national selectors are slated to meet on September 30 to pick India's squad for the upcoming ODI series against Australia at home.
"The middle-order must have Yuvraj Singh. With due respect to Dinesh Karthik, I think Yuvraj is a more deserving No 4 batsman," Ganguly added.
Meanwhile, Ganguly also refused to believe reports that chief selector Sandeep Patil spoke to Sachin Tendulkar about the later's retirement plans after playing the 200th Test.
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"These speculations had happened in the past with players like Rahul Dravid, VVS Laxman or myself. But I don't think the Board or Patil has spoken to Tendulkar about his last Test," Ganguly said in an interview to a regional news channel.
Drawing parallel with Indian tennis ace Leander Paes, Ganguly said: "We have seen how Paes won his 14th Grand Slam at 40.
"Things may be different for Tendulkar who unlike Paes plays a team sport where selectors take the call, but it's his (Tendulkar's) wish. As long as he plays, records will keep on tumbling."
"We all would like to see him retire with his head high, whenever it maybe," he added.
"We have seen with other players like Hansie Cronje in the past, it takes time to come out of a life ban with all the court cases," Ganguly added.