Which one of these architect designed the Quaid-e-Azam tomb?

Which one of these architect designed the Quaid-e-Azam tomb?

ان میں سے کس معمار نے قائداعظم کا مقبرہ ڈیزائن کیا تھا؟
Explanation

The tomb of the Muhammad Ali Jinnah was completed in 1970.

Architect(s): Yahya C. Merchant

Construction started: 31 July 1960

Inaugurated: 18 January 1971