For Pandharpur, MSRTC buses will be there at every 5-10 mins interval.
Bus stand is just 1.5 Km from station, you will get lots of City Buses to reach stand.
Also two daily trains for Pandharpur from Solapur.
06:00 AM - Miraj Fast Passenger
11:35...
more... PM - Kolhapur Express
By road distance is 70 Km while by train it's 130 Km (Almost double).