Karim Uddin Barbhuiya, also known by his daak naam (saju) (Bengali: সাজু), is an Indian Politician of All India United Democratic Front from Assam .

He was the General Secretary (Political Affairs) of All India United Democratic Front Central Committee from 2016 to 2024 He has been serving as a Member of Assam Legislative Assembly for Sonai since 2021.

[1] Karim Uddin Barbhuiya was born into a Bengali Muslim family from Kanakpur, Cachar district, Assam.

[3] In 2019, Barbhuiya graduated from the Chaudhary Charan Singh University in Meerut with a Bachelor of Arts degree.

[4] Barbhuiya is the general secretary of the All India United Democratic Front's central committee and is also the head of the party's Barpeta branch.