Distance/Correspondence

Distance MBA from IGNOU is the best option because IGNOU is most popular university in India and school with highest number of students in the world so it is also the best around. The university has been providing high quality distance education for many years and allows students to specialize in variety of subjects. The reason behind its popularity is that it is one of the cheapest universities to obtain MBA degree with total cost of 21,000 INR. Opened in 1985, the university also serves as national resource center and acts to promote and maintain standards of distance education.
The IGNOU admission for correspondence MBA program was started in year 1987. At that time, it had one program- I.e., Diploma in distance learning MBA education. Now the university offers more than 10 programs for 50 courses. As of 2011, it has served more than 3 million students in India as well as in 4 other countries abroad.

M.Sc. in Environmental Science: Admission process
The admission process for the course is varied, as various institutes have their very own criteria and processes of admission. Admission to the course is often based on the candidate's performance at the level of graduation, and often, on performance in a relevant online entrance test and interview conducted by the concerned university/institute.
The online test is generally an hour long and consists of multiple-choice questions assessing students based on proficiency in English, Analytical Reasoning and Quantitative ability.
Please refer to the link provided below for a list of colleges which offer courses in M.Sc (Environmental Science) in India:
https://www.shiksha.com/science/colleges/m-sc-environmental-sciences-colleges-india