Hello Aspirant,

As per the criteria for Rajasthan domicile you must have been in Rajasthan for minimum of 10 years but as you have mentioned in the question that you have passed only class 12th from there so you are not eligible for Rajasthan domicile. Which means that you belongs to the domicile of Nagaland and Nagaland will be your home state for JOSAA counselling process instead of Rajasthan.

I hope this information helps you.

Good Luck!!