Mukherjee also held talks with the foreign ministers of Cyprus and Belarus, which are members of the Nuclear Suppliers Group, on the sidelines of the ministerial meet.
During the meetings, he briefed the leaders on the safeguards agreement that is crucial to the implementation of the Indo-US civil nuclear deal.
There was a clear appreciation of India's energy needs, said an official who was present at all the meetings.
Other NAM countries, which are part of the International Atomic Energy Agency, are Egypt and Ghana while South Africa is a member of the NSG.
The Minister also met his counterpart from Cuba Felibe Perez Rogue who is chairing the 15 NAM ministerial meet.
India has been involved in hectic lobbying ahead of the crucial IAEA meet with Prime Minister Manmohan Singh writing separate letters to Chinese President Hu Jintao and Premier Wen Jiabao in a bid to garner support for the Indo-US nuclear deal.
Besides the safeguards agreement to be cleared by the IAEA, a waiver from NSG for carrying out nuclear commerce is necessary for the implementation of the deal.