Exit Delhi onto the GT Karnal Road, National Highway . Continue driving on NH-1 through Panipat (75 kms), Karnal (110 kms), Pipli (155 kms) and Ambala (200 kms). Follow the signage to take the underpass for NH-22 on the left about four kilometers ahead of the Ambala Cantt. Railway Station. Continue on NH-22 till Zirarkpur (35 km). Follow the signage to take road on the left just before the flyover and turn right below the flyover to take the road to Panchkula. Continue driving straight on NH-22 through Chandimandir and Pinjore to reach Kalka. Cross the Kalka bazaar and the bridge leading into Himachal at Parwanoo. Keep on NH-22 driving through Dharampur and Kumarhatti (use the new road leading to the right at Kumarhatti) to reach Solan. Turn left onto the Solan Byepass at the intersection with the police post as the roundabout. Cross the railway line at Chambaghat and continue driving on NH-22 through Salogra, Kandaghat, Shoghi and Taradevi. You can view Shimla town on the right as soon as you cross Taradevi. Keep driving straight till you reach the Victory Tunnel junction. Turn left into the tunnel and drive on through the Lakkar Bazar bus stand till you come to the Sanjoli byepass. Bear left onto the byepass till Dhalli bazaar and turn left at the T-junction. Half a km ahead take the uphill road on the right (avoiding the road on the left leading to Mashobra) and reach Chharabra. Climb the stone driveway on the right to arrive at the Wildflower Hall.