The Brits also used Singer's Three in One oil which used to be available in India until about fifteen or twenty yeras ago. After the original Singer company ended up being bought by a Japanese firm, I think they stopped manufacture. There is some Three in One oil that is still sold in India but it is more for lubricating sewing machines and things like that.

Not sure if this was similar to Rangoon oil (which I have never even seen, though I have used Three in One oil quite a bit) but I thought I'd put this out.

RHB or GPSB would know about the stuff if something like it is still available in India.

Good hunting!