if no zaheer,will india go for 5 main bowlers in the next test?

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hi friends.it was rightly said that the moment zaheer left the field,everyone knew the match was going to be a draw because everyone knows if there is one bowler who can gaurantee break-through,it would be him. said it was some abdominal strain. so assuming zaheer wont play the next test,will india still go with a 4 bowlers attack when its weakness without zaheer was exposed? or considering harbhajan scored more than raina (23) and dhoni (46) in this series,should india consider going with a 5 main bowler attack in this series decider? wishfull thinking? dhoni has been adamant about his four bowler attack. is it because he doesnt believe that his top 5 that he has to go with another batsmen or he is over-confident about his bowler?