Hello,

Phd is a highest earn degree which is doctorate of philosophy which can be done in various fields like physics, biology, statistics, computer science, etc. It takes upto 5 years for completion and requires research and thesis presentation. Your salary varies based on your experience from 4 lakhs to 12 lakhs oer annum.

Mtech is masters in technology which is done after pursuing bachelors in engineering or technology. You need to give Gate examination for this course. It is a two year course and you earn salary starting from 6 lakhs per annum based on university.

For more information you can refer to careers360 articles on phd and mtech as given following

https://www.google.com/amp/s/www.careers360.com/courses/m-tech-master-of-technology/amp

https://www.google.com/amp/s/www.careers360.com/courses/ph-d-doctor-of-philosophy/amp

M.Tech which is a post-graduate degree for engineering students is having a wide scope and its applications are growing worldwide every day. Due to the rapid development of technology, there is a need for professionals specialized in different areas of engineering. Master's in Engineering graduates usually begin with a salary of about Rs. 50,000 per month or more. Salary packages go into much larger numbers over years of work experience.

A doctoral degree (PhD) is the highest degree you can earn in a particular field. Students doing a PhD degree, devotes their 6-7 years in earning their degree, and its not an easy task. PhD in Engineering

Early Career Salary  : $93,600

Mid-Career Salary  : $137,000