"We are planning to sign the general framework agreement for Units 4 and 5 this year," ASE Group President Valery Limarenko said.
Talking to reporters on the sidelines of the nuclear conference ATOMEXPO 2016 here, Livarenko said that his company had "defined" the configuration for units 5 and 6 and that "negotiations are on."
He did not disclose further details.
Earlier, fuel loading had been done in the second unit of the power plant early this month and according to the Nuclear Power Corporation of India Limited (NPCIL) it was expected to attain its first criticality (Commercial operation) in June.
An Indo-Russian joint collaboration, KNPP has been opposed by local people, who had cited safety reasons for opposing the multi-million dollars project.