E way bill...

There are few options are available for this case

1. Cancel the e-way Bill and issue again with correct number; or
2. Inform the officer with respect to this, stating only small amount of difference; or
3. Take a risk for 3 Rupess and send goods accordingly; or
4. Change the invoice value (after approval from management) – make sure it reached to vehicle (amended invoice); or
5. Raise a credit note for 3 rupees and make sure it reach the vehicle and attached with original invoice; 
6. Etc....

Try which one is best for you