As you have asked about the IFSC code details of the Punjab National bank Greater Kailash (GK) Part 1, I am giving you information about it, check below for the details

Bank: PUNJAB NATIONAL BANK

Address:
B-73, GREATER KAILASH PART 1,
NEW DELHI 110048

State: DELHI
District: DELHI
Branch: GREATER KAILASH PART 1
Contact: 011-26226339,6338 ASHOK KUNDRA

IFSC Code:
PUNB0099300 (used for RTGS, IMPS and NEFT transactions)

Branch Code:
Last six characters of IFSC Code represent Branch code.

MICR Code: 110024045

You can also take help of branch locator tool to get the details
For that
Visit PNB webpage
Select the branch locator option under the ATM and branch Network,
The page open look like



Here you will get the info about the branch.