Rourkela: The immersion of Goddess Durga idols concluded in the early hours of Saturday, marking the end of the Durga Puja festivities here. Devotees and members of various puja committees took part in the immersion processions and bid farewell to the Goddess.The immersion was scheduled for Friday. While some idols were immersed in the temporary immersion pond at Balughat by late Friday afternoon, processions from other pandals began in the evening and continued until the early hours of Saturday. Elaborate security arrangements were made by the police and administration to ensure that the processions passed off peacefully. Around 28 platoons of police personnel were deployed at strategic locations across the city to maintain law and order and prevent any untoward incidents.The traditional Durga Puja Melan celebration, organised by Central Puja Committee (CPC), was held at the Melan Ground in Sector-13 on Friday evening, where a large number of people gathered to witness the event. This year, puja committees from 109 pandals across different areas, including Civil Township, Steel Township and Fertiliser, celebrated Durga Puja under CPC. Most of the committees had erected attractive theme-based pandals and installed idols of Goddess Durga by spending lakhs of rupees.