GoAir, IndiGo Airlines and 5 other airlines fly from Jaipur to Nagpur hourly. Alternatively, Indian Railways operates a train from Jaipur to Nagpur twice daily. Tickets cost $20 - $29 and the journey takes 18 h 25 min.
From Jaipur taxi to Jaipur airport, fly to Nagpur airport, then taxi to Nagpur. 3 h 47 min $137. From Jaipur (JP) train to Nagpur (NGP). 18 h 25 min $28. From Jaipur bus to Indore then bus to Nagpur. 27 h 20 min $21. From Jaipur drive to Nagpur. 13 h 27 min $116.