Gautam Gambhir called back to Test team

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It was an unexpected call from selectors ahead of Eden Garden Test at Kolkata to recall veteran opener Gautam Gambhir. He was called in as K.L. Rahul was injured for this match and may be upcoming test matches. Is it a correct call? Could a young player, who is knocking the doors of Test cricket should have been included in the team. Is it a regressive call?