Hi aspirant, since you have 400 marks in your NEET exam so on the behalf of your obtained marks your rank will most probably lie in range between 120k-135k. So you can take below mentioned following colleges:

• Calcutta Unani Medical College, Kolkata
• BLDE University, Bijapur
• Shri Ramchandra Institute of Higher Education and Research, Chennai
• Manipal College of Dental Sciences, Manipal
• Rajarajeshwari Medical College, Bangalore
• BVDU Medical College, Pune
• Yenepoya Medical College
• MGM Medical College, Aurangabad

Moreover you can also predict your college with the help of College Predictor Tool by Careers360(link mentioned below):

https://medicine.careers360.com/neet-college-predictor?utm_source=qna

Thank You.