The point of 'they managed to avoid a bloody revolution' is a contentious one. At the eve of independence, there was absolute ZERO movement anywhere for local independence. Except for Myanmar & Sri Lanka, which was always treated as a separate administrative unit of British India, there was never any desire for 'free bangal or free marathwada' or any such. There was hindu vs muslim vs sikh wanting their own homelands on RELIGIOUS basis.
Ergo, one can evaluate it as to what might've happened if Bose type had 'won' over the Gandhi-nehru ones. A potential scenario is 'religious wars' with similar fate as the partition, with similar borders but more bloodshed. Another potential scenario is Jinnah's 'federated islamic republic within india'. Another is 'hindus & muslims compete like whites and blacks in USA'.
However, what DID India lose ? For starters, as you mentioned, reparation or even basic loan payment the british borrowed from British India to finance the war.
One angle of why British created & backed Pakistan along with their western cabal and why the British officers in Pak/Kashmir 'acted independently' to secure Kashmir for Pakistan can be explained by one salient fact : The British were HIGHLY interested in listening outposts in the Gilgit-Hunza region, to monitor Lop Nur- the chinese nuclear test site & central asia - the one 'giant hole' in the anglo-saxon global network and in post independent pakistan, the British DID establish such listening posts.
One can easily argue that Nehru 'froze' the kashmir conflict, despite us winning on all fronts, as a ' i scratch your back coz you scratched mine' move to the British.
There's plenty of geopolitical & economic freebies independent India handed out to the British that is not in alignment with the actions of a supposedly 'breakaway nation that got free by beating your ass' move. Note that even USA-UK were on very hostile terms till the revolution of 1852 ended.
Which makes sense, because they became independent about 70 years prior and the generation that grew up betwen 1780 and 1852 had to die for that freedom related animosity to end.