The report quoted a top intelligence source as saying that it was kept secret due to the sensitivity of the incident.
Recent reported incursions by Chinese troops into Indian territory have created anxiety in some quarters in India about China's aggressive designs.
The Indian government has, however, sought to play down the incursions, saying these are routine incidents that occur due to differences in perception about the Line of Actual Control.
Welcoming the diplomat, Governor Jamir said that the future destiny of the world depends to a large extent on how China and India build up their cooperation.
Jamir urged that minor incidents and setbacks should not be allowed to disturb peace and good relations between the two nations.
'Both countries have inner strengths that enabled them withstand the economic recession. I hope they will join hands to give the world a better civilisation,' Jamir said.