Hi dear,

You have scored 91.5  percentile in JEE main that means your rank should be around 73865. You can also calculate your rank as

Rank=(100-your percentile)×869010÷100

However your final rank will depend on number of student appear in April month exam. Your category rank will be around 17k which is not sufficient to get any NIT. You should reappear in april month exam and perform better.

Hope it helps.