New Delhi, Sep 17 - The Indian government put off a high-level meeting of officials that was to be held here Thursday to discuss alleged Chinese border intrusions.

The meeting was expected to be chaired by National Security Adviser M.K. Narayanan. Cabinet Secretary K.M. Chandrasekhar, Defence Secretary Pradeep Kumar, Home Secretary G.K. Pillai and Foreign Secretary Nirupama Rao were to attend.

No reason was given for its postponement. But reliable sources said this followed differences between the external affairs ministry and the Prime Minister's Office on the one hand and the defence ministry on the other.

The external affairs ministry has publicly tried to downplay the reported incursions, saying they are routine incidents that occur due to variations in perception about the Line of Actual Control (LAC), which de facto marks the Sino-Indian frontier.

External Affairs Minister S.M. Krishna has cautioned against creating 'excessive alarm' over the reported developments and stressed that India's border with China had been 'most peaceful'.

The defence ministry has pitched for a more assertive approach vis-a-vis the alleged incursions, which Beijing has denied.