Earlier, the Chinese foreign ministry trashed reports of incursions as 'baseless' and said that Beijing seeks a fair and mutually acceptable solution through a peaceful and friendly negotiation.

Sources in the external affairs ministry also sought to downplay the incursions, seen by some as evidence of China's increasingly hawkish posture on the boundary dispute, and said the incursions were due to differences in perceptions of the Line of Actual Control (LAC).

'There is no mutually agreed LAC. We have asked for an early clarification from China on this issue,' a source said.

Beijing has yet to respond to India's proposal for clarifying the LAC so that such incursions are avoided.

India and China held the 13th round of boundary talks between their special representatives last month. The talks are aimed at arriving a package settlement to their decades-old dispute from a higher political perspective.