Hello Dhwatha, 

Assuming you have finished with the 3 year Diploma program, I can tell you that there are two paths you can choose. You can take up a job as a Field Operator, Petroleum Geologist, or even an Assistant Manager if Well Testing. Your average starting salary will be 3 to 6 LPA. 

The second path is that you take up a degree in Petrochemical Engineering. Following are the 10 best colleges for it:

1. IIT Mumbai 

2. Indian School of Mines, Dhanbad

3. University of Petroleum & Energy Studies, Dehradun 

4. Indian Institute of Petroleum and Energy, Visakhapatnam 

5. Rajiv Gandhi Institute of Petroleum Technology, Uttar Pradesh 

6. Pandit Deendayal Petroleum Universit, Gandhinagar

7. Maharashtra Institute of Technolog, Pune 

8. MS Engineering College, Bengaluru

9. GH Patel College of Engineering, Gujarat

10. LD College of Engineering, Ahmedabad