To add account no in bill

how to add account number, ifsc code, email address and contact no in supply bill and also how to update these field in the manager software

please search the forum. these have been answered many times.

These things are covered in the Guides.

I don’t get that in forum or guide please tell me

Of who? For customers, edit the customer in the Customers tab. For suppliers, edit the supplier in the Suppliers tab. For banks, edit the bank account in Bank Accounts tab. For your business, change Business Details under Settings.

in business details setting there is only business identifier in which i have filled g.s.t no of my business i want my account number and bank details like ifsc code on my sale bill please tell me

create a custom field for sales invoices with default data in it.

You can also enter more than one line in the business identifier field. Since fields accept HTML, insert a <br> tag where you want a line break. This was actually mentioned the December newsletter. Are you subscribed to that?

For example:

32 AM

shows up like this on transactions:

12 AM

I would prefer and suggest not to use the Business Identifier field for anything else other than the intended purpose.
the business identifier is related to the liability towards the tax authority and if in future Manager implements various reports for the same it may bring up other issues.

I have not received any news regarding it and thanks for your suggestion

Yes, you have. You have been given two approaches for including such information that require no particular programming skill. Here is a third: you could hard-code such information in a custom theme.