India has not invited its neighbours Pakistan and China for the sixth edition of the biennial defence exhibition being organised here from February 15 to 18.

"We have not sent invitations to Pakistan and China for the Defexpo 2010. In fact, they also do not invite us for such events they organise. Last year, we had invited China to the AeroIndia-2009 show in Bangalore, but it did not participate," Defence Production Secretary R K Singh said.

Defexpo 2010, which will witness participation from 35 countries and will have official delegations from 41 countries, would be the largest ever held in the last decade and Defence Minister A K Antony will inaugurate it. Among the foreign countries to attend the exhibition, US would have the largest representation, followed by Israel. Among the countries to attend the exhibition, Bulgaria, Hungary, Nigeria, Senegal, Surinam, Turkey, Uganda and United Kingdom would send their Defence Ministers, while several others, including Israel and Italy, would be represented by their deputy ministers.

There would be delegations headed by some countries' Defence Secretaries, Chiefs of Army and Navy too.