What is the need of a dress code at NIT-Trichy?

Since one of my cousins is currently a part of NIT Trichy, he can possibly elaborate on your question more thoroughly. 

• The dress code at NIT Trichy, as per my cousin, is very rare. 
• Unlike many other institutes in Tamil Nadu, the dress code at NIT Trichy is quite unflustered. 
• Students, mainly boys, cannot wear shorts into the class but can definitely wear t-shirts if they wish to. 
• The major drawbacks are rather faced by the girls of the institute because, at any seasonal point, they are mandated to wear salwar kameez or Kurtis. 
• It is both unjust and apparently not highly appreciated, in terms of climatic conditions, comfort zone, and other similar factors. 
• That said, it can get highly unmanageable during the summertime when the climatic conditions of Tamil Nadu usually soar the highest. 
• Trichy, Tamil Nadu, is extremely conservative in factors relating to the modern outlook of society. 
• Regardless of how much the campus has currently grown, there have been multiple incidents of fining bulky amounts to students for unconsciously flouting the dress code of the institute, even on basketball fields. 

However, it is best if you research more about the present scenario of NIT Trichy, regarding their dress codes, regulations, and other relevant aspects.