Query Regarding Forget Password Option ???

Recently the Income Tax Department has initiated a new facility of direct login and resetting of forgot password of e-filing portal using net banking account of the tax payer.
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At present the facility is available through the following banks:
- Corporation Bank-Retail Banking

- Corporation Bank-Corporate Banking

- Union Bank of India

- Oriental Bank of Commerce

- City Union Bank Ltd

- Bank of India

- Kotak Mahindra Bank

- Punjab National Bank

- Axis Bank Ltd

- Allahabad Bank

- Central Bank of India

- UCO Bank
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The steps are as follows:
-> Taxpayer should be a registered user of the e-filing portal.
-> PAN details should have already been submitted to the bank.
-> After logging into the net banking account, select “Income Tax e-Filing Login” tab/menu item.
-> Select the account number and enter the PAN for verification and click submit.
-> Accept the rules and regulations.
-> Confirm the redirection to the Income Tax Department e-Filing account - home page.
-> Now password can be reset and all the services can be accessed.
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- Source: News & Updates dated 11.12.2014 at the e-Filing website. [Visit the e-filing website for detailed steps with screenshots.]

OP did said that bank account is not applicable, so ... how net banking ?

Another option [beside the one told by Mr. Sahil Bhatia] is to use [OTP] option from forgot password

Since your client is salaried employee you can use the option of

selecting new mail id and phone & select option of 26AS [TAN] Wherein you will have to enter TAN of the employer