So, how about John Company exports English Industrial Revolution to Bengal?
After all, the express aim of Permanent Settlement had been to create in India an improving gentry like England. So exporting things which seemed to work in England did get done - even at a fiscal cost.
If, instead of suppressing Bengal industry, the English develop it to exploit it as investors and tax collectors, what would happen? Englishmen build factories in India, remit licence fees to inventors and patent holders in England, and the Company government issues patents to both English inventors in India as well as Indian inventors...