Bala Sundari Fair is celebrated at
, a place of great religious importance, situated near Nahan
in Sirmaur District
. It is the main attraction of the
dedicated to goddess Bala Sundari. The fair is held twice a year during the sacred days of Navratras in April and October. A large number of devotees visit the temple during the festival to pay their homage to the goddess.
Trilokpur is accessible by road from Nahan, 23 km away. It is 6 km from Kalka-Ambala highway, the gateway to Nahan from Haryana.