India have secured a sizeable first innings lead of 143 runs over the West Indies in the third and final Cricket Test in Dominica. Resuming at their innings at the overnight 308 for six, India were all out for 347 on the penultimate day at Windsor Park today. Skipper Mahendra Singh Dhoni was the top scorer with 74. The hosts made 204 in their first innings.India are leading the series one-nil by winning the first Test played in Jamaica. The rain-marred second match in Barbados ended in a draw.