Hello Urja.

No, taking a year gap after class 11th or even class 12th will not affect your chances to get good universities/Colleges for Ms.

M.Sc. stands for Master of Science and it is a two year postgraduate degree in specialized science fields such as Chemistry , Mathematics , Physics , Biology , Botany , Life Sciences , Bio-Technology , Microbiology and many more. Master of Science degree is designed to provide students with the required scientific knowledge and opens new and ample opportunities in a variety of fields.

Further, there are many colleges in India for MS that you can look out for after Class 12th. Some of which are :

IIT Madras

NIT, Tiruchirappalli

International Institute Of Information Technology, Hyderabad

Thiagarajar College Of Engineering

Further, if you wish to know more about the list of colleges for MS you can follow the below mentioned link to know more : https://engineering.careers360.com/colleges/list-of-ms-engineering-colleges-in-india

also you can know more details and information regarding MS courses, by following the link below : https://www.careers360.com/courses/msc-master-of-science

I hope that this will help.