Hii,

Yes you can definitely put ews if you have ews certificate with you..

Also , while reporting to the allotted college after the counselling , you need to must submit the original copy of the required documents which are listed below

• NEET 2020 Admit Card
• NEET Scorecard or Rank Letter
• Class 10 certificate and mark sheet (for date of birth)
• Class 12 certificate and mark sheet
• ID proof (Aadhar/PAN Card/Driving License/Passport)
• Eight passport size photographs
• Provisional Allotment Letter
• Caste Certificate (if applicable)

Hope this will help you,

All the very best !!