SMS or EMAIL ? which is a better way of communication?

To me SMS and also IM are a better way of communication. The other party will get the message as soon as you send them, and also they can promptly respond! Email is not that effective because some people don't check their emails often. Therefore, they might miss out on any messages you sent to them.

will I agree with you because nowadays almost all people have mobile phones & you can directly receive responses & response immediately (except when you are out of load or you dont want to respond to a particular person sending you an SMS) but if you want to send a long message to a person its better to email him/her