Bose: U Boat Crew meeting Singapore?

[Treve]

Is there any information about a probable meeting of the nationalist S. C. Bose with U boat crews in Singapore?

I do not have the reference before me but it it is alleged that he did meet with them now and then.

He was in Singapore in October at which time a U-boat passed by.

It would be interesting to know if there was any such contact or even elsewhere.

Any information on German-Indian contacts in the region would also be welcome.