I dont know what do you do for living,but in the corporate World,I am not sure,how many people actually like their bosses.There are always timelines to adhere to and the workload is crushing.So,irrespective of the boss is Bengali or anybody else,people under him do talk about him,abuse him,on his back.
I will tell you what real discrimination is.Real discrimination is something when you dont get to be the boss because of your ethnicity.
I have got a picture to answer your doubt :
Pranab Mukherjee,the President of India(Read, Boss of India) an Indian and a Bengali.Enough said.......