India and Russia will discuss nuclear energy and the cost of retrofitted aircraft carrier Admiral Gorshkov during Russian Prime Minister Victor A. Zubkov's maiden visit to the country Tuesday, Xinhua quoted official sources as saying. A host of crucial issues will be on the table, including bilateral civil nuclear cooperation and the escalation in the price of aircraft carrier Admiral Gorshkov, when Prime Minister Manmohan Singh holds talks with his Russian counterpart, said the sources. Five pacts in the field of aviation and telecom are likely to be signed after the talks. The issue of expanding civil nuclear cooperation will be discussed but an agreement on building additional reactors at Kudankulam will not be signed this time, the sources said. The delegation-level talks are expected to clear a controversy around the escalation in the cost of retrofitted aircraft carrier Admiral Gorshkov, which India agreed to purchase from Russia.