Some more information about the unfinished Akula hulls Rys and Kugar:
http://www.military.com/forums/0,15240,134118,00.html
"
Subsequently, the Commander-in-Chief of the Russian Navy, Admiral Vladimir Kuroyedov, said that a “redesigned”
Yuri Dolgorukiy would be completed in 2007. The new submarine employs the bow and stern pressure hull sections -- including the propulsion section -- of the Project 971 (NATO Akula II)-class submarine
Kuguar. Work on that torpedo-attack submarine(SSN )was also stopped after the collapse of the Soviet Union, making her components available for the new SSBN.
Similarly, the second unit, the
Alexandr Nevskiy, is being constructed with sections of the fourth Akula II SSN, which had been assigned the name
Rys’. Some components for the other new SSBNs are being shipped to Severodvinsk from the Komsomol’sk shipyard in the Far East, which previously cuilt nuclear-propelled submarines."
Second Akula sub for India.
http://www.military.com/forums/0,15240,148100,00.html
Last llnk also says one Charlie class leased 1988-1991..Not two.