India have become the world's top-ranked Test Cricket team for the first time after beating Sri Lanka in the third Test by an innings and 24 runs in Mumbai today.Sri Lanka, resuming on 274 for 6 were bowled out for 309. Sri Lankan captain Kumar Sangakara, who had made 133 yesterday, lost his wicket at his individual score of 137 after putting some resistance. India's Zahir Khan claimed 5 wickets.Virender Sehwag was adjudged 'Man of the Match' and 'Man of the Series' for his outstanding performance in the three test match series, which India won two-nil.The 2-0 series win moves India above South Africa in the International Cricket Council's Test rankings.Victory in the third Test came after an India fight back secured a draw following a first-innings collapse in the first Test in Ahmedabad. Then they beat Sri Lanka by an innings and 144 runs in the second Test in Kanpur – India's highest ever margin of victory over their opponents.Final scores: Sri Lanka 393 and 309India 726 for 9 declaredThe President Mrs. Pratibha Devi Singh Patil has congratulated the Indian team for becoming number one in ICC test ranking. She said it is well deserved and reflects the depth of talent of Indian cricketers.The BCCI also congratulated the Indian team for the Tests series win against Sri Lanka.