Hello,
Sastra University is a typical brahman university with very strict rules and plus it is a deemed to be university so if the management makes a rule it is the rule. You can check the detailed Rules and Regulations for Sastra University from the link given below -
https://www.sastra.edu/2014-01-29-07-17-45/2014-01-29-17-32-24.html
All The Best.
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