This is ahistorical rubbish I’m afraid. There were many motivations for joining the Indian Army, but a prominent one was a desire to prevent the Japanese from entering India. My final chapter deals with this question. By 1944 most Indians who thought about such things (and there were many who didn’t, as in every society, not bothering themselves with issues of civic & political governance) knew the empire was finished and wanted to fight to secure a different future, free from the depredations of totalitarians of any stripe.
amzn.eu/d/0hcHPKQ4