Telangana is a landlocked Indian state surrounded by 4 Indian states, Karnataka, Andhra Pradesh, Maharashtra and Chhattisgarh.
All the commercial vehicles like taxi, truck, buses etc. need to pay border tax for Telangana to operate in this state legally.
It is not required that the yellow number needs to be from these four states, but vehicles from any other state entering Telangana need to pay the RTO tax to work without any worry.
It doesn't matter what type of vehicle the customer has, its RTO border tax must be filled in order to work in the state.
Telangana offers quarterly tax payment for taxis and buses having all India permit.
For vehicles having special permits, options for 7 days are also present, but it completely depends upon the customer.