Hey Aspirant, your gate score is quite low and is not good enough to get you into any of the good NITs in India.

With the score of 421 out of thousand, I would recommend you to look for state engineering colleges rather than NITs because there almost no chances of you to get into any NIT.

You can look for the previous year cutoffs of various NITs by referring to the link below:

https://engineering.careers360.com/articles/gate-cutoff

Hope you will understand.

For further doubts regarding thhis please ask in comments.