The minister and his wife Savita participated in the daily 'shayan arti' at 7:30 pm, Mukhya Dharmadhikari Bhuvan Uniyal said.
The chief priest of the temple, Ishwari Prasad Namboodiri, helped him perform the rituals.
He said the minister was at the temple for about 45 minutes.
This was the second day of Singh's four-day visit to Uttarakhand.