We at Finsys Infotech Limited have received suggestions and representations from various erp clients. We have taken views from various excise and GST consultants also. 

The nutshell view is that intra State sales.... same GST number...                            

Option 1 make a delivery challan 

Option 2 make invoice with zero rate of GST

Finsys software has both the facilities

How to make a invoice you already know how to make a delivery challan the PowerPoint is attached below the PDF of delivery challan for a interplant same state ABC Polymers Faridabad to abc Polymers Gurgaon.....

At Finsys our effort is to make your GST transition smooth 
We continuously make effort to facilitate your business needs 
various customers have various views 

all views are respected 

We are facilitators and we are giving both the options 
You are free to use the option as per your choice and the guidance made available to you by your consultants