Can I take IoT (Internet of Things) after M.Sc in computer science? Is it necessary to take B.Tech for taking IoT?

There is no need for B.Tech if you have interest in this field. Go for it because the field of CS/IT has much more scope in future. IoT- Internet of Things Various domains have adopted the potential of Industrial IoT in their space, which in turn, led to massive job creation. But unlike other fields