Hello there!

Greetings!

Yes, English is used by professors for teaching in Ranchi University,  actually there are many colleges under Ranchi university and in all the colleges english is used for teaching but teachers do speak in hindi as well while teaching , mostly while explaining concepts,  so in general hinglish i.e. mix blend of English and hindi is used by most of the teachers and when it comes to students then students mostly speak hindi for conversation among themselves.

thankyou