During bilateral talks with his Indian counterpart Narendra Modi, Johnson discussed the ways to boost trade and security ties with India, which buys more than half of its military hardware from Russia.
Johnson has offered support for new Indian-designed and built fighter jets, offering the best of British know-how on building battle-winning aircraft.
Both leaders agreed to transform defence and security cooperation as a key element of India-UK Comprehensive Strategic Partnership and discussed opportunities for defence collaboration including co-development and co-production for meeting the needs of armed forces of both the countries.
The two leaders had also detailed discussion on co-production and defence technology, particularly in electric propulsion and modern defence aircraft's jet engines and other complex defence equipment, the Ministry of External Affairs said in a statement.
Both sides issued a joint statement for further intensifying co-operation on Cyber Security particularly in the areas of cyber governance, cyber deterrence and safeguarding critical national infrastructure.
They also agreed to closely cooperate on countering the persistent threat of terrorism and radical extremism.
The two leaders also discussed the ongoing Ukraine-Russia conflict.
Prime Minister Modi also expressed deep concern at the mounting humanitarian crisis and reiterated his call for immediate cessation of violence and return to direct dialogue and diplomacy as the only way forward.
"The world faces growing threats from autocratic states which seek to undermine democracy, choke off free and fair trade and trample on sovereignty," Johnson said in a statement on Thursday after visiting Gujarat.