Should take a look at Ben Anderson's "spectres of comparison" -- whose book opens with an account of a Sukarno speech mentioning Hitler in apparently favourable terms, a speech which he originally heard as a young researcher in Indonesia and which stumped him then.
By most accounts, it would be difficult to tag Subhas Chandra Bose as "right wing" much less "very right wing". Sure, the INA wasn't fussy about its 'allies', being focussed on getting rid of the Brits. This happened across the whole region. In Malaya, the Union of Malay Youth "collaborated" with the Japanese, but is generally considered as part of the history of the "left". In Indonesia, Sukarnoist forces also "collaborated" with the Japanese.
In brief, the straightforward application of categories and perspectives from Euro-America in the period in question is of doubtful utility for understanding the history of the region and of the character and behaviour of the political groups then.
kj khoo