State Industries and Tourism minister S. Hiato lost his Saiha constituency to MNF nominee K. Beichhua by a narrow margin of 222 votes.
Mizoram Home Minister and Congress candidate R. Lalzirliana won the Tawi seat defeating MNF nominee Lalmalsawmi by 947 votes.
Mizoram's Law and School Education Minister and Congress nominee Lalsawta retained his Aizawl East II seat defeating his nearest MNF candidate Sailothanga Sailo by a margin of just 177 votes.
Food, Civil Supplies, Environment and Forest Minister and Congress candidate H. Rohluna retained his Lengteng seat in southern Mizoram defeating his MNF candidate L. Thangmawia by a narrow margin of 167 votes.
Only non-Mizo Congress candidate and Chakma tribe leader Buddha Dhan Chakma won the Tuichawng seat in southern Mizoram beating MNF nominee Rasik Mohan Chakma by a big margin of 8,726 votes.
"In the South Tuipui seat, sitting Congress legislator John Siamkunga retained the seat defeating opposition ZNP (Zoram Nationalist Party) nominee J. Lalchhuana by a margin of 1568 votes," officials told reporters.
Senior Congress leader S. Laldingliana retains his Lunglei South seat defeating his nearest MNF candidate K. Pachhunga by 450 votes.
Unlike the last assembly polls in 2008, the Congress did well in both southern and northern Mizoram which shares borders with Myanmar and Bangladesh.