The journey from Satpuli to Guwahati covers about 1800 km. You can take a taxi to Haridwar or Dehradun and then a direct train to Guwahati. Road travel is also a viable option but very long. Guwahati is the gateway to Northeast India and is known for the Kamakhya Temple.
Total Distance: 1800 km by road, 1500 km straight-line.
Check for trains from Haridwar to Guwahati for better frequency.
October to March.