Q. Which of the following Para-military force guards the Indo-Nepal border?

[A] Central Reserve Police Force

[B] Central Industrial Security Force

[C] Indo-Tibetan Border Police

[D] Sashastra Seema Bal

Answer: D

The border patrol teams have also been asked to remain extra alert in Uttarakhand near the Kalapani area. 

While the ITBP guards the India-China border, the SSB guards the Indo-Nepal and Bhutan border — to heighten vigilance. 

Source: https://www.newindianexpress.com/nation/2020/sep/03/amid-lac-standoff-forces-at-nepal-border-told-to-be-extra-alert-mha-sources.