The fees and eligibility for a diploma in Instrumentation Engineering can vary depending on the institution. You should have completed your 10th with minimum aggregate marks ( usually around 50 to 60 percent).

On average, the total fees for the entire diploma program can range from INR 20,000 to 50,000 in government colleges. In private institution it may range from INR 30,000 to INR 1,50,000 per year or more.

You can know what are the best diploma Instrumentation Engineering colleges in India, using the below link.

https://engineering.careers360.com/colleges/list-of-diploma-in-instrumentation-engineering-colleges-in-india