Certification

You can go for introductory computer science courses for better understanding in future.

Hi,
Pearl Academy is one of the best institute in New Delhi for Diploma courses in fashion merchandising.
All the best.

To be honest, there are no good institutes in Nagpur which can train you to become a good photographer. However, if you wish to relocate then the top colleges from where you can learn photography are mentioned below:
https://www.shiksha.com/top-10-colleges-for-photography-courses-in-india-article-11445-1

Habibs Hair Academy is the best institute if you wish to become a hair stylist as Jaweb Habib is not only a renowned name but will also help you get many opportunities after completing the course.

If you are picked up in campus placement by Indian IT companies with Remote Infrastructure Management vertical, you may able to work as Network engineer without certification based on your B.Tech CSE degree but finding NE job directly without certifications may be difficult. It will be good to seek network certifications for your long term career growth in industry.

To obtain Oracle DBA certification, you require knowledge and skills on following: Creating an Database, Managing the Database Instance, Configuring the Database Network Environment, Managing Database Storage Structures
Administering User Security, Managing Data Concurrency, Implementing Database Auditing, Database Maintenance, Performance Management, Backup and Recovery Concepts, Performing Database Backups,
Performing Database Recovery, etc.