How to fix ITR error "Please enter a valid Aadhaar Number."?

The above error takes place when entered aadhaar is not a valid aadhaar number.

Following are the steps to resolve such an error on Quicko: 

1. Login to Quicko, 

2. Go to Taxpayer, 

3. Click on View Order, 

4. Click on Amend > Confirm, 

5. Go to Taxpayer > Aadhaar Number, 

6. Enter the aadhaar number as per aadhaar card, 

7. Go to efile and file ITR again.