India and Russia will sign a framework agreement in civil nuclear field and three pacts in defence sector during the three-day visit of Prime Minister Manmohan Singh beginning on Sunday.
Singh will have wide-ranging talks with President Dmitry Medvedev on bilateral issues and regional matters in which the issue of terrorism emanating from Pakistan and Afghanistan is expected to figure prominently.
After the talks, the two sides will sign an overarching Inter-Governmental Civil Nuclear Agreement that will enable the two countries to set up atomic reactors in each other's country.
The agreement also entails perennial supply of uranium to Indian reactors and gives India the upfront right of reprocessing of spent fuel, sources said here today.
It also contains provisions that could allow transfer of Enrichment and Reprocessing Technology subject to certain conditions.
"The Agreement to be signed with Russia is better than the 123 Agreement signed with the US," a source said.
The two countries signed last year an agreement providing for setting up of four additional Russian nuclear plants in Kudankulam in Tamil Nadu and some other places whose venues were to be decided later.
That agreement was inked during Medvedev's visit here.