[1][2] Sahar was born in Laghman Province[3] in the village of Diwa as the oldest son of Mirza Ghulam Mohamed Khan, a member of the Kakar tribe and a Provincial treasurer for the King, and Bibi Sheeba, a homemaker.
He graduated from Habibia high school as class Valedictorian in 1949 and completed his degree in Political Sciences from Kabul University with first rank.
Upon graduating from Kabul University, Sahar worked in communication department of the Ministry of Culture and Information and in the Daily Eslah newspaper as the chief of the editorial board.
He held faculty position as Professor at Wayne State University in the department of speech and drama, starting courses on Mass Media and Society there.
As Professor of Journalism and Mass Communications, he was a champion of free speech/press and human rights as well as a strong advocate of bringing Television in Afghanistan.
"Neutrality as our traditional Policy", an article defining and clarifying neutrality as the best policy for Afghanistan, Daily Anis, Kabul Afghanistan "A friendly suggestion to the great nation of Iran", an article advising the Iranian Authorities of the time to use their best judgement about Mosaddegh, the Prime Minister who was put on trial by the King.
The article emphasized the point that destroying a man like Mosaddegh may not seem difficult, but surely to find a replacement for such a master was something that the Iranians couldn't afford.