Teesta Low Dam - III Hydropower Plant and Riyang railway station lies in Rambi.

Physiographically, this area forms the Kalimpong Range, with the average elevation varying from 300 to 3,000 metres (980 to 9,840 ft).

[4][5] While the first degree college in the subdivision was established at Kalimpong in 1962[6] the entire subdivision (and now the entire district), other than the head-quarters, had to wait till as late as 2015 (more than half a century) to have their first degree colleges at Pedong and Gorubathan.

[9] Teesta Low Dam - III Hydropower Plant produces 132 MW of electricity.

[10] Rambi Rural Hospital, with 30 beds, is the major government medical facility in the Kalimpong I CD block.