India flights typically get an Indian-style veggie option in both Y and J - it’s the market - where a significant amount of population in India are vegetarian. Not sure if it’s the case anymore, but UA flights to FRA (at least in Y) always used to have an Indian-style veggie meal as one of the options - found this out when they screwed up my wife’s order for this, but it was a regular option so she ended up ok. Apparently this is due to the amount of connections via FRA to India. Not sure if this continued through COVID or not.

interestingly, UAs special meal options were always pretty slim pickings, and not always ‘on’ IATA standard definitions. For example, typically, a Hindu meal could have meat, and Asian veg would be the Indian-style veg option. However, UA dropped the Asian Veg option I don’t know how long ago, and ensured the Hindu meal was vegetarian (IIRC, last time I checked, my wife’s meal which had to be ordered as Hindu via UA was coded as AVML - which is for Asian vegetarian). But if you are connecting to another airline you have to be real careful. I made sure to go to LHs site last time to make sure her order was properly for an Asian Veg there, as if marked Hindu, almost certainly would have been a meat option on that segment.