New Delhi, July 28 -- Former captain Ajinkya Rahane believes that while the Indian batting unit has sung in harmony, the bowling department remains a "concern" ahead of the fifth Test against England in the Anderson-Tendulkar Trophy at The Oval, scheduled to begin on Thursday.

After the conclusion of the four Tests, India remains alive, trailing 1-2 as both teams return to London for one last contest of the five-match series. In the series opener at Headingley and the third Test at Lord's, India were outbowled by the hosts, leading to their downfall.

India forced a draw at Old Trafford in Manchester to stay hot on England's heels as the gruelling series heads towards its conclusion. Rahane identified one aspect that India will be keepin...