Yes, you can take a drop year and appear for TS EAMCET after a 3-year gap. Here’s what you need to know:

1. Taking a Drop:
   
   You can take a gap year and attempt TS EAMCET in the subsequent year.
   
   

2. Eligibility After Gap:
   
   There’s generally no restriction on the number of years after which you can take the exam, but ensure you meet the age and eligibility criteria specified by TS EAMCET.
   
   

3. Changing Photo in Application:
   
   Contact the TS EAMCET exam authorities for guidance on updating your photo. Usually, there are instructions for updating personal details and documents if there is a significant change in appearance.

Make sure to follow the official guidelines and deadlines for the application process.

I hope this answer helps you. If you have more queries then feel free to share your questions with us we will be happy to assist you.

Thank you and wishing you all the best for your bright future.