Chance to win ?

Ishant Sharma gets Watson and now the Australians are 6 down for 203. Ahead by 273. If India could now polish up the tail within 300(lead), then do we need to go for a win ? Yes we should. Opening partnership could be the key and if Sehwag and Gambhir give us a good start followed by some sensible positive batting by middle order, we could see a chance of probable win. Against the odds.