Yes thats why they are turing off CA on B40 in many places.They don,t want to do B40C to avoid network choking.If they enable 40C you will not get any improvement in speeds as all the 4g smartphones have 40C enabled by default because of that everyone will consume twice the bandwith and so your speed will become twice since you are getting 1.8 mbps after spectrum addition before that spectrum addition you must be getting around 0.9 mbps or more as with time users on jio network might have increased.