Kolkata, Aug. 18 -- India had Sri Lanka exactly where they wanted them. At 90 for five, the first innings looked destined to become an exercise in damage limitation. Having exposed Sri Lanka's top order, India's spinners were extracting extravagant turn and the match appeared to be moving rapidly in the visitors' direction. Then Niroshan Dickwella and Sonal Dinusha changed the shape of the Test. Sri Lanka were eventually dismissed for 284, giving India a first-innings lead of 178. It remains a substantial advantage, but it could have been considerably larger. The 146-run partnership between Dickwella and Dinusha-who hit his maiden Test ton-ensured that India were denied the kind of lead that might have allowed them to dictate the final two ...