No, It is not possible to complete the Char Dham Yatra in 1 day. The minimum time required to complete the tour is 2 days. You need to book a chartered helicopter. The helicopter can accommodate four people and would cost around Rs. 6-7 Lakhs.
The trip would start from Dehradun. One day 1, it would pay a darshan to the Yamunotri Temple and Gangotri Temple. On the second day, it would cover Kedarnath Temple and Badrinath Temple and would return to Dehradun.
The Chhota Char Dhams of India are Yamunotri, Gangotri, Kedarnath, and Badrinath. These Dhams are located in Uttarakhand. Yamunotri is dedicated to the Goddess Yamuna, Gangotri to Goddess Ganga. Kedarnath Dham is dedicated to Lord Shiva and Badrinath to Lord Vishnu. These are also called Himalayan Char Dham.