Yep, there is some pretty interesting stuff here in India, especially of the two-wheeled kind. But honestly, I haven't looked around for four-wheelers, really.
I've heard plenty of stories regarding a couple of Vincent engined cars being raced in India in the years gone by. Goldstars are less rare - I know of about 5 people who have at least one of them.
India's quite large, as you already might know. And everything from a Brough Superior to downed Lancasters have been unearthed through the years. Where the land up is anybody's guess, really.
Delhi used to have WLA Harley engined home-made trikes plying on the roads till very recently. These were used as cheap transport but then, they weren't registered and had to go off the road when the legislation got tighter. Sadly, almost all of them landed up being hacked to bits at the scrapers. Sigh, such is the story the world over, I guess. People don't know the value of what they have and to them, it's just another pile of junk that they need to rid themselves off.
With regard to my bikes, all of them were picked up in rather horrid condition. My 3HW was literally dug up from the ground. All I could see of the bike when I entered the bloke's backyard was the rear wheel and a bit of the clutch cover. But I guess what applies to all of you applies to me as well - harder the challenge, sweeter the reward.