The first general elections were held under the constitution of ?

The first general elections were held under the constitution of ?

پہلے عام انتخابات کس آئین کے تحت ہوئے؟
Explanation

The first-ever general elections were held on 7th December 1970.

Yahya Khan issued a Legal Framework Order for the first general elections.

LeaderSheikh Mujibur RehmanZulfikar Ali Bhutto
PartyALPPP
Seats won167 86
Popular vote12, 937, 1626, 148, 923
Percentage39.20%18.63%