Catch the Volvo bus from Delhi to Manali in the evening 5:00pm. And Overnight journey in the Volvo bus.
Arrive Manali in the morning, check in the hotel and after having some rest proceed to local sightseeing of Manali like Hadimba Devi Temple, Vashist Village, Club House, Monasteries. Evening free to visit Mall Road. Dinner & overnight stay at hotel.
Morning after breakfast proceeds to full day sightseeing of Kothi Gorge, Gulaba, Marhi, Rohtang Pass (Snow Point). Dinner & Overnight stay at hotel.