Hello Amar,

Well with your GEN-EWS rank of 25000 you can get good colleges for B.Arch. If we convert your rank to percentile then it comes in between 94.4 to 95.4 percentile. Now the cutoff for GEN-EWS was 78.21 percentile in JEE Mains, whereas you have scored much more and is JEE Main qualified. So you can apply for colleges like NITs for B.Arch course thorugh JoSAA counselling process. If by any chance you don't get a good seat through JoSAA then you can apply for CSAB counselling which will begin after the end of JoSAA counselling process. You can apply for private colleges also through your JEE Main score. In that case you have to attend the counselling session of the respective college. So better attend the counselling processes of the colleges where you want to get a seat and see what do you get.

Below I have listed some of the top colleges for B.Arch in India those who accept JEE Main score - 

• CT University
• NIT Tiruchirappalli
• NIT Calicut
• NIT Rourkella
• NIT Nagpur
• Birla Institute of Technology
• Nirma University
• NIT Jaipur
• NIT Bhopal
• Maharaja Sayajirao University of Baroda
• Chandigarh University

So these were some of the colleges for B.Arch. You can go through this link and checkout the list of all the colleges for B.Arch accepting JEE Main score : https://engineering.careers360.com/colleges/list-of-engineering-colleges-in-India?f%5B0%5D=sm_college_degree%3AB.Arch&f%5B1%5D=sm_quali_exam%3AJEE%20Main

Also, you can go through this link and chek the details about JoSAA counselling : https://engineering.careers360.com/articles/josaa-counselling

 For information regarding CSAB counselling refer to this link : https://engineering.careers360.com/articles/csab

Good Luck !!!!!