In 1970, he was elected first-deputy of the People's Assembly (Alb: Kuvendi Popullor), and served as member from the seventh to the end of the eleventh legislative term until 1991.

In September 1975, Miska succeeded the demised Koço Theodhosi as member of the Politburo of the Party of Labour of Albania without previous candidate status.

Together with Hekuran Isai, Qirjako Mihali, and Llambi Gegprifti, Miska was part of a new generation of leaders within the party, which emerged and gained influence with the termination of relations with the People's Republic of China.

He was subsequently appointed as successor to Simon Stefani as Chairman of the National Assembly, and therefore Parliament Speaker, from 22 November 1982 to 19 February 1987 before being succeeded by Petro Dode.

[citation needed] In 1993, Miska would be sentenced together with other nine former high-ranking officials (Muho Asllani, Besnik Bekteshi, Foto Çami, Hajredin Çeliku, Vangjel Çërrava, Lenka Çuko, Qirjako Mihali, and Prokop Murra), being accused of "funds abuse".