Foreign Secretary S Jaishankar who is headed for Seoul to push for India's bid for NSG membership at the plenary of the 48-nation grouping on June 23-24.

Chinese Foreign Ministry spokesperson Hua Chunying says China will play a constructive role in the discussions on India's NSG membership, but India not on NSG agenda. The NSG members had three rounds of unofficial discussions on India and Pakistan's membership in the grouping.

According to Indian government sources, the Foreign Secretary is watching the situation "very closely" and, depending on the "feedback" from the official-level meeting of NSG ahead of the crucial plenary on Thursday and Friday in the South Korean capital, he may travel to Seoul to give a "final push". The official-level session of NSG started on Monday.

PM Modi is likely to meet Chinese President Xi on the sidelines of the Shanghai Cooperation Organisation. Government sources say New Delhi sees this as a huge opportunity for India to persuade Beijing for support in the NSG.

Jaishankar is skipping the Tashkent meeting to head for Seoul, where the 48-member nuclear club is holding a plenary meeting, for a last-minute diplomatic push for India's inclusion.

China has repeatedly stressed that the grouping is divided over India and admitting new members is not on its agenda.