India will begin Sachin Tendulkar's farewell series in international cricket with the first Test beginning at the Eden Gardens here tomorrow.
The absence of Jadeja has tilted the balance of the side.
"It has been a bit of a concern. I've always said that we need good seam bowler or a frontline spinner who can bat a bit. At times you don't realise the importance of a particular player. People criticise so much.
The skipper said there are not enough options at the moment.
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"We will have to find someone to do the job. It's always good to have a plan B or C... At the moment we don't have too many who can do the job," Dhoni said.
India are in a quandary over the bowling line-up and they are not sure whether to play with a five-men attack or give in-form Rohit Sharma the Test cap while using him as a part-time offspinner.
"If we go with five bowlers, both of them may not play. If we need someone who can bowl a bit of off-spin then Rohit plays. Thirdly, if we go with four specialist bowlers, Ajinkya stays," he said.