Its the nearest railhead from Nainital hill station.
You can alight here and pre-book a cab ahead of arrival or even after alighting outside many vehicles would be there for nainital.
The main highway lifeline NH 87 from the plains to kumaun-garhwal goes just outside the station.
Tourist coming by rail mode can take Taxi or Buses from Kathgodam or Haldwani.
Taxis...
more... are available on shared seat basis at Taxi stand & as well as at Kathgodam, Haldwani & Lalkuan railway stations.
While most of the buses start from Haldwani roadways bus stand.
So if needed a cheap and adventure journey, then alight train at Haldwani station and board state transport bus for nainital. ;)
Total distance from Kathgodam to Nainital is 35 km and from Haldwani to Nainital 41 km.