"The event passed off peacefully amid tight security arrangements at important places," a senior police officer said.
Hindu-outfit Bajrang Dal observed it as "day of bravery and victory" and organised various events whereas the Left parties held a joint protest in front of Vidhan Bhawan.
Earlier, 10,000 security personnel were deployed amid calls by Muslim outfits to mark the day by hoisting black flags even as Hindu bodies sought to commemorate it.
Prohibitory orders were clamped in the city and mounted police was among about 10,000 police and anti-riot personnel keeping a vigil.
Two dozens CCTV cameras were also installed across the Ayodhya city.
