[1] Ngjela was born in Sheper (Zagori region) of the Gjirokastër District in Albania.

[2] In 1945 he became a member of the Constituent Assembly (Alb: Asambleja Kushtetuese) which declared Albania as a Republic.

After 1950, he was a member of the People's Assembly (Alb: Kuvendi Popullor), representing the Tirana District until 10 October 1975.

[9][10] In September 1975, along with other leading economic politicians as the members of the Politburo of the Party of Labour of Albania as Këllezi and Koço Theodhosi, he was released from his duties and accused of anti-party activity, for having pushed unnecessary trade deals with "revisionist countries" and sabotaging "self-reliance", and of being an agent of UDBA, CIA, and KGB.

[11][12] His son Spartak Ngjela (born 1948) was also arrested and imprisoned during 1975-1991 as a political enemy.