Hello,
You got 75% in NATA so your marks may be 150. Which is very good marks for take admission.
You will get easily admission in mumbai or Pune any architecture college. But with NATA marks they are required your 12th Board exam marks.
I'll provide you a link you can find colleges of Mumbai.
https://engineering.careers360.com/colleges/list-of-b-arch-colleges-in-mumbai
All the best.
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