Tholi Ekadashi, or Devshayani Ekadashi, falls on Sunday, July 6. The Ekadashi Tithi starts at 6:58 PM on Saturday, July 5 and ends at 9:14 PM on Sunday, July 6. Marking the start of Chaturmas, devotees fast, visit temples, perform special pujas, and offer prayers to Lord Vishnu, who is believed to enter divine sleep.