Shares of Vedanta Ltd gain as much as 3.9 pct.
Cairn India Ltd rises as much as 2.9 pct to highest since Oct 2, 2014.
Vedanta said it completed buyout of oil and gas explorer Cairn India after months of investor opposition.
Deal gives Vedanta access to Cairn's $3.5 bln cash pile.
Cairn India shareholders to get interim dividend of 17.70 rupees ($0.2741) per share - Vedanta.
Cairn India said its board had made an effective merger.
($1 = 64.5700 Indian rupees)
