Are colour blind people eligible for m.tech in metallurgical and material engineering department?
While color blind people can complete the UG course for any branch except mining (where they do not even accept such people), it is not advisable to do so in some branches like Mechanical, Chemical, Metallurgical, etc.Computer Science and IT should be fine.
I do not advise doing graduation in above branches in such scenarios because you would not be eligible for jobs due to physical fitness reasons. As color-blindness cannot be fixed , there is no way to be employed in relevant industry as you would be a safety concern.
While I cannot comment on some other branches like Civil, Electronics and Electrical Engineering, would advise you to get in touch with people with relevant information.