How hard is it to get admission into Pondicherry University for an MSc in statistics?

Actually, it is quite the contrary. It is quite easy to convert to Pondicherry University even if you are a little serious about your studies. 

• The university conducts its own entrance test every year. You need to clear the test to get admission here.
• For the test, you need to be moderately prepared (depending on the level of the student) and practice the last 4-5 years of the question paper. The level is easy
• Most people aim for the IITs, IISc, and ISI Kolkata before joining this university if they do not get a chance there. You can get an idea of the level of the university.

The course is good with excellent faculty and a good study environment, more freedom and no academic or social pressures. So it would be a wise decision to join here if you do not get the top colleges.