I wouldn't write it off as a bitsa just yet. In the 1920s there were many small manufacturers in the UK, the US and on the continent who adopted the 'fore and aft' rocking fork. And I wouldn't even pretend to know what the motorcycle industry in India was up to in the 1920s! Do you think the bike has been there since new?
The frame has some elements of the 'built like a bridge' Francis Barnet, but is not fully bolted up like that marque.
Where to from here?
Is it a bita? Tell-tale signs are welded up components where you would expect to find lugs, and the odd unresolved stuff up. Have a close look around the back axle region and where the seat post mounts where the frame looks unusual: if these places are done with lugs with tubes brazed into them I think you can bet the bike has left a factory somewhere looking much as it does now.
Where does it come from? Carefully measure the threads on the frame, motor and gearbox. This may help as metric threads might point to europe, BSF/BSCY might point to UK, UNF to the US. (Not always useful as some manufacturers used very strange threads: try to find a metric thread on an early FN sometime - you'll be disappointed!)
Because the bike is in the 'cheap and cheerful' category, I suggest restoring it (or getting it running) as is. It would be fun to ride, and more information will come to light some time!
Leon