How can we put discount option in item line in purchase bill entry

You'll have to enter the discount item manually, Mehul9k. I'm here to guide you.

First, let's create a discount item. Here's how:

1. Click the Gear icon.
2. Select Products and services.
3. Click New, then select Service.
4. Fill in the necessary fields.
5. Click Save and close.

Then, create a bill and add the discount in the line item. Enter the amount manually (negative). 

If you have other concerns, please don't hesitate to click the Reply button below. Keep safe!