first of all RIP GSLV
2nd, if i was indian and wanted to lie i would have said exactly the same thing as you but i want to tell you the truth i would refrain from calling this "ingeniously" developed.
cryogenic engines and technology to produce at home were supplied by russia.
1992
Indian Missiles: Threat and Capability
India's quest for imports provoked a row with the United States in 1992. The Russian space agency tried to sell India advanced cryogenic engines for India's most ambitious space rocket, the Geosynchronous Satellite Launch Vehicle (GSLV). The United States opposed the deal, rejecting India's argument that the engines were only suitable for space launchers. "If you can do space launches, you can do ballistic missiles," a Commerce Department analyst told the Risk Report. The analyst's stance is buttressed by a CIA report declassified in 1993. It said that a space launcher "could be converted relatively quickly by technologically advanced countries ... to a surface to surface missile."
Google news search
(preview only) (pay to view full articles)
india russia cryogenic - Google News Archive Search
(Russia has reassured India of its continued cooperation on the cryogenic technology transfer)
(Pay-Per-View - Atlanta Journal-Constitution - NewsBank - May 20, 1992
Washington said Russia's proposed sale of cryogenic engines to India violated the provisions of the Missile Technology Control Regime, an international)
1993
(Russian rocket chief heads for visit in US
Ocala Star-Banner - Google News Archive - Aug 25, 1993
The deal with India for two cryogenic rocket engines, said to be worth million, ... to giving India sensitive technology, and threatened Russia with sanctions.)
(Devaluation of Russian reform
$2.95 - Washington Times - NewsBank - Aug 5, 1993
... cryogenic rocket engines and missile-related technology to India. ... On the same day, it acted to restrict foreign bank activity in Russia.)
RUSSIAN GIVES U.S. CHALLENGE ON AID - NYTimes.com
(In recent months Russia has come under American criticism for supplying cryogenic rocket engines to India, a modern submarine to Iran and other high-tech weaponry to China. Eliminating 'Suspicion')
this is only tip of ice berg of foreigner technology provided to india for this project and i think like a wise man credit must be due to where it is deserved.
Its like me saying. JF-17 is "indigenously" R&D by us when it is not.