Starting winter 2018, Cook will supplement its UK flight programme through Air India.
Flying from London and Manchester, passengers will be able to access Mumbai, Delhi and Bengalaru, via Goa.
Cook has also announced an agreement with Scottish regional carrier Loganair.
This will allow Scottish passengers to travel to a handful of new long-haul destinations via Glasgow or Manchester, such as Cancun, Las Vegas and Punta Cana (Dominican Republic).
In Europe, meanwhile, Cook has partnered with Malaysia Airlines to add 40 new connections across 15 countries.
