I dont know why we are supporting that which we cannot understand. Tell me how many people understand sanskrit 5%, 7% or 10%. How many people can undertand bangali 10% 20% or 30% not more then that but most of us can undersatnd urdu/hindi may be 80% 90% people understand hindi. It is our national langauge too so why we are not accepting "saare jahan se accha hindustaan hamara" as national song. Let people understand what they are singing or what they are listing.
