Here in Jharkhand airtel has 30mhz spectrum of B40.i have seen b40 20mhz and b40 10mhz working individually.it can easily do b40 20mhz+b40 10mhz CA here.i think only jio is properly utilising its spectrum.Almost every state it provides 5+3,5+40,3+40,40+40,5+3+40,3+40+40 CA combinations.Even though it has less spectrum than airtel and VIL