H1b Stamping update validity date after booking appointment

I WILL BE TRAVELLING TO INDIA IN SEP 2016.GOT INTERVIEW DATES IN SEP 6 2016.H1B VISA IS VALID TILL NOV 2016.APPLIED H1B EXTENSION IN PREMIUM PROCESSING HOPEFULLY WILL GET VISA APPROVAL BEFORE TRAVEL DATE.
MY DOUBT IS WHILE BOOKING VISA APPOINTMENT IN DS-160 FORM REFERENCED CURRENT VISA VALIDITY DATE .HOW TO UPDATE DS-160 FORM AFTER PETTITION APPROVAL IN PREMIUM PROCESSING .

First thing first - STOP typing with CAPS LOCK on.

Now coming to your question. You have following options:

  1. Complete another DS-160 form with updated information. Carry both old and new DS-160 forms to your biometrics appointment and request the person to swap the old w/ new.

  2. If (1) doesn’t work ask the biometrics person to update the receipt number in your old DS-160 form

  3. If (2) doesn’t work, then carry new 797 to interview and explain the situation to visa officer. He should be able to grant visa on the basis of extended 797.