There is a lack of good Gate coaching classes for Mining Engineering, but here are a few good ones.

1. Maruthi Academy is the First Institute in India Coming up with top IIT Faculties like Indian School of Mines(ISM-IIT), Banaras Hindu University(BHU), Master's (Australia). There is Lack of Gate Coaching for Mining Engineers.

It is also well known for effective teaching and personality development skills.

They have their branch at Secundrabad.

2. Merit Plus 

They have started their first batch of classroom program for GATE and PSU Exams in mining engineering in Talcher, Odisha, Further intensified their reach to mining community by providing guidance on Mining Sirdar/ overman PSU exams, gas testing Exams for Diploma students.

This is a venture of IIT-KGP Alumni.

It is more important to do self-study rather than depending on coaching. 

Hi,Pratap

It is available in India

Career Avenues Gate Coaching is a best coaching centre,it is situated in chennai