A 'Link your bank account' form is an authorisation you give your bank, which allows Scripbox to initiate transfer of funds to the mutual fund company in accordance with the investment instructions you place online.
This mechanism is used to automate your investments. For example when you want to invest Rs. 10,000 every month, you place an instruction one time with Scripbox and we automate the fund transfer and investment on the basis of the amount you enter in the form.
If you're investing using HDFC , you can instantly link your bank using internet-banking. Most of the other banks like CITI, ICICI, Kotak, Axis and Yes bank have an option to link using Aadhaar.
For other banks, example State Bank of India, all you need to do is sign the form and e-mail a clear picture of it to firstname.lastname@example.org. We do not need the hard copy.