First image has a sticker that says "YD-480". Clearly obvious from the beginning.

NSI5922 wrote on 2024-08-01, 09:56:

Hi! I have this FDD, it says YD 480 on the label, but YD 380 on the motor. I also couldn't find any pictures of this FDD, looks like it was made in India by "Larsen and Toubro Limited" under the license of Y-E Data. Does anyone know what model is it?

Original YD-380 had a bigger PCB with many more THT chips. It was revised at least once since many IBM drives for XT already have some SMD parts and shorter, cheaper PCB. I would guess 480 was yet another revision but with a new model number this time, possibly also to allow licenced production. Both are HD drives with most parts being compatible so the stepper motor would be indentical in both. So I'd say it's a 480.

And then Y-E made the more common YD-380B which uses even smaller and cheaper to make PCB.

There are a few pics (mid page) of an original Y-E Data YD-480 from 1985, here https://www.cfretro.net/philips-bo-prototype/ for comparison. Seems Larsen and Toubro didn't sign the licence agreement until early 1986.

PC Hoarder Patrol wrote on 2024-08-01, 11:32:

There are a few pics (mid page) of an original Y-E Data YD-480 from 1985, here https://www.cfretro.net/philips-bo-prototype/ for comparison.

Nice find. It appears to have the smaller, revised 380 PCB. I do wonder then if the difference is perhaps in the head solenoid? It's rather unusual for PC drives to have it, so the addition would call for a different model number.
Sadly I can't tell from the OP photos if the solenoid is there, or is that just a small metal insert to cover the hole. The PCB would need to be removed to have a good look at the heads and entire clamping mechanism.