Devutthani Ekadashi

Prabodhini Ekadashi — Vishnu wakes, wedding season returns in many North Indian calendars.

Vidhi. Kartik Shukla Ekadashi. Vishnu wakes; Tulsi Vivah is often the same week. Wedding bookings reopen in many North Indian calendars.

Paran. Paran after tithi end the next morning. Read Rahu kaal before a travel or booking that day.

Mantra. Om Namo Bhagavate Vasudevaya

Also Prabodhini / Dev Uthani. Confirm the civil date if you cross a state line that night.