Assuming you are asking for B.Tech so you can consider below names as these are considered to be the decent institutes for Mining Engineering -

IIT, Kharagpur

ISM, Dhanbad

IIT BHU Varanasi

NIT Surathkal

VNIT Nagpur

Anna University, Tamil Nadu ( Through 12th Merit)

NIT Raipur

IIEST, Shibpur (Earlier BESU)

With a specialised technical degree, you can get job offers from core mining or allied organisations.

Pursuing mining engineering gives you an opportunity to work in exploration and research field.

Average salary package in this field is around Rs. 50,000 per month. It can be be vary according to person

The most famous for mining ofcourse is ISM Dhanbad  which is now IIT (ISM) Dhanbad. Apart from this, IIT Kharagpur, IIT (BHU) Varanasi, IIEST Shibpur, NIT Nagpur, Rourkela, Raipur, Surathkal - all offer mining enginering. Check the coleges here https://engineering.careers360.com/colleges/list-of-mining-engineering-colleges-in-india

For Petrochemical engineering, you can check the list here https://engineering.careers360.com/colleges/list-of-petrochemical-engineering-colleges-in-india

Mining Engineering is the science of extraction and processing of essential natural minerals from the environment, understanding rock mechanism etc. To join the branch, candidates have to complete 10+2 with PCM. Admissions to 4-year course are done through either JEE rank or other entrance tests. Top recruiters are Coal India

There are jobs. You see PSUs like the Oil and gas companies, Mineral Development Corporation, NALCO etc - these companies do take mining engineers. So are there are enough job oppotunities? - well I cant say as this is dependent upon a lot of facts. However, you could apply for

Please share which particular college your are asking for as it varies accordingly.

You have completed diploma in mining branch? Now you are seeking admission in which course? any entrance did you gave for the course you are interested to take admission in?

Here are some of the colleges name you can prefer for Mining Engineering.

IIT Kharagpur

NIT Surathkal

NIT Rourkela

NIT Raipur

For further detail about you can go through with given below link.

Mining Engineering colleges