Despite bitter chill and transport crisis, the gathering of devotees of all ages spilled over the adjacent roads.
Hundreds of thousands of devotees from home and abroad joined the Akheri Munajat to pray for spiritual progress, exaltation and welfare of the Muslim community.
Road traffic on Dhaka-Mymensingh highway and Abdullahpur-Ashulia road remained suspended since morning following the gatherings.
Eight people died at the Ijtema venue since it beginning on Friday due to old age ailments and different other complications.
A dowry-free mass wedding also took place at the venue on Saturday.
The Ijtema, especially the final day, saw stringent security measures in and around the venue. About 12,000 security personnel have been deployed to ensure safety of the devotees.
Besides, hundreds of volunteers worked round the clock for a smooth holding of the congregation.
Devotees from 32 districts and over 15,000 foreigners attended the first phase of the Ijtema. The second phase is scheduled for January 20-22.
Tablighi Jamaat has been organising the annual congregation in Tongi since 1946.