India's northeastern state Arunachal Pradesh is claimed in its entirety by China.

Krishna also sought to dispel apprehensions in sections in India about what some see as the growing Nepal-China bonhomie. 'Nepal understands our security concerns and has reassured us that it won't let any other country use its soil to work against us,' Krishna said.

Early this week, Krishna said whenever any incursions took place, the two sides tried to resolve the issue through flag meetings and diplomatic channels.

According to the India-China 2005 protocol, a flag meeting for clarification is to be called within 48 hours of any air intrusion. The incident then has to be investigated by the country accused of intrusion and the result communicated to the other country within four weeks.