what is the salary of mechanical engineer in india

A Mechanical Engineer with less than two years of experience makes approximately 17,900 INR per month.
The median salary is 31,500 INR per month, which means that half (50%) of people working as Mechanical Engineer(s) are earning less than 31,500 INR while the other half are earning more than 31,500 INR. The median represents the middle salary value. Generally speaking, you would want to be on the right side of the graph with the group earning more than the median salary.

Is there a minimum salary that a company must pay as per govt guidelines.
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Mechanical Engineer
Research the top mechanical engineering companies in order to get a sense of which employers hire the most mechanical engineers. When you’re job searching, you can search for (and apply for) jobs directly on company websites as well as on job board websites.

The main job of mechanical engineers is to invent, design, construct, operate, maintain and replace machines and machine products in industries.
There are a number of downsides associated with this career. The biggest obstacle as stated by most mechanical engineers is the working conditions one has to endure during a typical day of work. This can include dangerous industrial sites which are very noisy. Besides these conditions, the emotional and mental stress of such a job can take a toll on you.

Information Security Analyst
Q: How much does a mechanical engineer make in an hour?
A: In 2018, mechanical engineers earned an average salary of $44.62 an hour.

References:

http://www.youth4work.com/Talent/Mechanical-Engineering/Forum/167419-what-is-the-salary-of-mechanical-engineer-in-india
http://www.thebalancecareers.com/mechanical-engineer-earnings-2061807
http://plancareer.org/en/career/7/1146/mechanical-engineer-career-option-and-requirements.html
http://money.usnews.com/careers/best-jobs/mechanical-engineer/salary
http://www.indiaeducation.net/engineering/after-engineering/best-careers-in-engineering.html