GST on Transport Services business

Can anyone please help me in understanding the GST cateria in the transport business.

Example: ABC pvt ltd is a registered company & provides the goods & carriage service., like from Mumbai to Goa, Mumbai to Telangana, Mumbai to Bangalore and so on....Now ABC will generate the GST invoice to the customer, now the Customer will pay GST on RCM...

How will the ABC pvt ltd have to pay GST?

Please help me with this...