For the Kathmandu to Pokhara bus transfers, you will have to reach to the centrally located tourist bus stand on the Swayambhu Marg. From there you can see the bus which you have opted for as there will be a queue of buses. If you book the deluxe package then look for the Travel Nepal Bus, the name of the bus operator will be written on the front window of the bus but if you book the standard package then look for Global Vacation Travel & Tours in the queue of buses.
The bus departs daily at 7:00 am so, make sure you reach at least 30 minutes before the departure time. In case of delay, the bus will leave and no refund will be processed