It's not just that. Ever since he has got his position he is trying to promote India's ethnic values and culture and he's not saying "Bhaiyo aur beheno bas hindi bolo" ( brothers and sisters just speak hindi) and nobody is imposing the language hindi on anyone. But if you're living in a country and serving people(working in government sector) where almost majority of the people speak hindi don't you think you should have some sort of understanding to treat the people in their own language? I live in india and i have seen situations where people find it easy to grasp hindi than any other languages. Out of all those 1600+ language majority of them resembles and sounds like hindi ( just few accent differences are there) rajasthani, marwadi, mewadi, Bhojpuri,urdu, Haryanvi all resembles hindi i.e. if you know even a little bit of hindi you can deal with majority of north indian languages.