Business picked up soon and charters to major Indian cities like Bombay, Bangalore and Delhi were added to their schedule.
These large bodied aircraft were commissioned to fly on commercial routes carrying passengers from Calcutta to Bombay via Panagarh in West Bengal.
However, these planes proved too costly for the airline and in 1975, they were re-sold to private operator Air Works India in Bombay.
Rising fuel costs, labour problems, local competition, a shrinking fleet and legal battles between partners eventually broke the company apart and in late 1977 operations ceased.
The demise of James B. Muff left partner Bob Dequadros to conclude the numerous legal battles till his death in 1981.