Hey aspirant, At 97.6 percentile your expected rank will be about 3400 which is calculated by the method mentioned below:

{100-(your percentile)}*1453.86

If we observe the last year cut off for B.arch colleges like various NITs then you can definitely get admission at this rank. Last year students with rank less than 4000 were able to get admission where students with home quota got admission at rank as low as 10000 in NITs.

You can look for various CFTIs also.

Hope this helps for full details about the previous year cutoffs please visit the link below:

https://engineering.careers360.com/articles/jee-main-cutoff-for-b-arch-b-planning