ITR not processing

there is a time limit prescribed in 143(1) of intimation of processing of return I e 1 year from the end of year in which return was filled

and for refund it hardly take 10-15 days to take over to SBI refund banker

@ Mayank

Refund cases are processed on priority by CPC.
For getting timely refund you should have bank account pre-validated

can I expect to receive 143(1) on public holiday...

even we have prevalidated account , party could not get refund...as return is not processed

@ pravin all bank accounts of an individual are linked with adhar and registered mobile number number .
even nowadays without pan no. you cannot hv any bank account.
so for refund bank account information is given in the itr.

@ Mayank

To claim your income tax refund this year, then apart from filing income tax return (ITR), you have to do one more additional step. This is because the process of claiming income tax refund has been tweaked a bit by the tax department.

From this year, you will have to make sure that you have pre-validated your bank account in which you wish to receive the income tax refund once your return is successfully filed.

Assessee can pre-validate through e-filing portal .

1. Yes accept with Mr. Pravin, I too faced a similar problem with my client. Pre validation should be carried out in your E filing profile with the bank account in which the assessee wishes to receive the refund amount. 
2. It puts certain conditions that name given in the bank account should be as per the PAN and only then it takes pre-validation. Once done intimation of the status will be sent to your registered mobile number and email ID. 
3. Can also check your status by logging into your profile. 
4. To be frank, once the PAN matches with the bank account, all these pre validations are irrelevant. But from this year onwards IT department has introduced this receiving refund. 
Please correct me if the above solution has an alternative view.