Indian gay men will often ask foreigners for sex - it happened to me a number of times. I wasn't particularly disturbed when it happened, but I was curious why it happened so much to me.
I asked a couple of the guys who approached me and I got two answers. One is that I'm about a foot taller and more muscular than the vast majority of indian men, i.e. I'm pretty hot. The other is that if they approach an Indian, he might know people in their community which would result in their family finding out they are gay.
Nothing terribly unusual or that I haven't encountered in the US, but the frequency with which it happened was really alarming.
Twice a guy drove up next to me on more quiet roads and starting asking questions about how to get around or something other general that I can't remember (in English, btw). I always tried to keep running and they just rode along next to me. The topic would quickly change to sex and then I would get angry and sprint back to a busy street and go away. A couple other times guys drive past me in cars and were more direct. It was never violent or particularly scary.
I asked a couple of the guys who approached me and I got two answers. One is that I'm about a foot taller and more muscular than the vast majority of indian men, i.e. I'm pretty hot. The other is that if they approach an Indian, he might know people in their community which would result in their family finding out they are gay.