GS 2: International RelationsGS 3: EconomyPrelimsGS 1: ArchitectureGS 3: Infrastructure: Energy, Ports, Roads, Airports, Railways etc.
In Bhutan, PM unveils hydel project: Energy pillar of ties, Pg14.
PM Modi's Bhutan visit strengthens ties with inauguration of Punatsangchhu-II hydel project and commitment of Rs 4,000 crore LoC.