sir, I got 166 marks only in first two sections of b.arch(paper-2), then which percentile should I expect?

Hello!

Percentile or cut off is hard to determine as it also depends on the performance of the other aspirants' who have appeared for the examination.

You can use the Careers360 Architechture JEE Main Paper 2 Rank Predictor which predicts your rank on basis of your score and category. The link is attatched below:

https://engineering.careers360.com/jee-main-architecture-rank-predictor

With your rank, you'll be able to choose the colleges which accept your rank in accordance to your category. Here is the link where you can check that out.

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

Along with every college, there is a link through which you can get to know the fee structure, admission procedure and much more!

All the best!