You can revise the limit of your SBI Credit Card if you receive a pre-approved credit limit offer or by forwarding a request for the same. For requesting an increase in the limit (without a pre-approved offer in hand), contact SBI Card helpline number at 1860 180 1290 or 39 02 02 02 (prefix STD code). You need to check if you are eligible for the same or not. After the positive response from the customer car, submit income documents to prove your eligibility for a limit increase. Submit soft copies of Form 16, ITR VI, Last 2 months salary slips at www.sbicard.com or email the same.  You can also send the documents to the following address: Correspondence Department, DLF Infinity Towers, Tower C, 10-12 Floor, Block 2, Bldg 3, DLF Cyber City, Gurgaon - 122002