Chukha — the hydropower dzongkhag, the principal road from Phuentsholing to Thimphu.

The Chukha Hydropower Project

The Chukha Hydropower Project (336MW, completed 1986-88) was the foundational Bhutan-India hydropower partnership project. The project was financed through Indian government grant-and-loan support and constructed with Indian technical assistance; the electricity was sold principally to India under long-term power-purchase agreements. The project provided the principal early demonstration that Bhutanese hydropower could be developed at substantial scale through the Bhutan-India partnership framework; subsequent projects (Kurichhu 60MW, Tala 1020MW, Punatsangchhu I & II, Mangdechhu, Nikachhu) have followed the model that Chukha pioneered. The Chukha plant continues to operate today; the revenue-generation continues to be a principal contributor to the Bhutanese economy. See [[bhutan-india-relations|Bhutan-India relations]] for the broader bilateral context.

What a visitor encounters

Chukha is principally a transit dzongkhag rather than a destination. Most international visitors do not stop in Chukha (the principal hydropower project is not a visitor site; the road corridor is the principal practical use). Indian-passport-holders entering Bhutan at Phuentsholing pass through Chukha on the principal Thimphu road; the overnight at Phuentsholing or Thimphu is the typical pattern rather than Chukha overnight. **Cultural visits** — the dzong-town tradition at Chukha is principally a contemporary commercial town; serious cultural visitors typically focus on the principal western circuit (Paro, Thimphu, Punakha, Phobjikha, Bumthang) rather than Chukha. The matched guide arranges the Phuentsholing-Thimphu transit register for Indian-passport-holding visitors as required.

Common questions

Should international visitors plan time in Chukha?

Typically no. Chukha is principally a transit dzongkhag for Indian-passport-holders entering Bhutan at Phuentsholing; the principal hydropower-and-road-corridor function is not a cultural destination. International visitors flying into Paro do not pass through Chukha. The matched guide briefs visitors on the dzongkhag's role where the Phuentsholing-Thimphu corridor is part of the trip.

Is Chukha worth visiting for the hydropower interest?

For visitors with serious interest in the Bhutan-India hydropower partnership, the matched guide can arrange a visit to the Chukha Hydropower Project facilities (typically requires substantial advance arrangement through the Royal Government). The matched guide briefs visitors on the industrial-tourism tradition where relevant; this is a specialised interest rather than typical cultural tourism.

Why is Phuentsholing the principal border crossing?

Phuentsholing sits opposite Jaigaon (West Bengal, India) at the southern Bhutan-India border; the commercial-and-transit infrastructure has developed at this crossing over decades. Other crossings (Gelephu in the south-central region, Samdrup Jongkhar in the south-east) operate but Phuentsholing is the principal Indian-visitor crossing point. For non-Indian-passport international visitors, all land borders into Bhutan are restricted; international visitors fly into Paro on Drukair or Bhutan Airlines. See [[bhutan-india-relations|Bhutan-India relations]].