In GST list of state code is required for various purposed. State code list in GST can be found below:

State TIN Number State Code
Andaman and Nicobar Islands 35 AN
Andhra Pradesh 37 AD
Arunachal Pradesh 12 AR
Assam 18 AS
Bihar 10 BR
Chandigarh 04 CH
Chattisgarh 22 CG
Dadra and Nagar Haveli 26 DN
Daman and Diu 25 DD
Delhi 07 DL
Goa 30 GA
Gujarat 24 GJ
Haryana 06 HR
Himachal Pradesh 02 HP
Jammu and Kashmir 01 JK
Jharkhand 20 JH
Karnataka 29 KA
Kerala 32 KL
Lakshadweep Islands 31 LD
Madhya Pradesh 23 MP
Maharashtra 27 MH
Manipur 14 MN
Meghalaya 17 ML
Mizoram 15 MZ
Nagaland 13 NL
Odisha 21 OD
Pondicherry 34 PY
Punjab 03 PB
Rajasthan 08 RJ
Sikkim 11 SK
Tamil Nadu 33 TN
Telangana 36 TS
Tripura 16 TR
Uttar Pradesh 09 UP
Uttarakhand 05 UK
West Bengal 19 WB