Swiggy — swiggy charging tax on mrp

Address:

Mumbai City, Maharashtra, 400002

I have been to this starbucks and the coffee price is 250 including gst.
However, on swiggy app they are charging gst on the maximum retail price and claming it to be a restaurant charge. This problem inflates when you order more products. Also, sometimes swiggy adds box and packaging charge as well as a restaurant charge when the same restaurant when you go to doesn’t charge a single paisa. Kindly check. Photo added for reference.