A physicist turned mathematician, Rashid has made numerous contributions in Special unitary group, applied mathematics, theoretical and nuclear physics, SO(2), and dark energy.
In 1964, Munir Ahmad did his PhD in Mathematical physics under the supervision of Salam, where his doctoral thesis were entitled "Generalization of Mass Formula in Unitary Symmetries".
The next day, the paper appeared as Unitary Symmetry: A collaboration of three Israelis and two Pakistanis[6] M. A. Rashid returned to Pakistan in 1970, and joined Quaid-i-Azam University as a professor.
Rashid, in midst of 1971 Winter war, was serving as a research associate in Quaid-i-Azam University when Salam had asked him to join Pakistan Atomic Energy Commission (PAEC).
[citation needed] It was here Salam had delegated numerous mathematicians at the Quaid-i-Azam University to participate in the nuclear research program.
Rashid continued his close association with Salam in PAEC where he had worked on the mathematics problems related to the science of the designing of nuclear weapons.
[7] Rashid also had applied the Hamiltonian harmonic oscillator theory to approximate the optical wavelengths and the transition amplitudes of the Quantum particles in the tested nuclear device.
[citation needed] Specialized in mathematical physics under Salam, Rashid had developed an early interest in scattering theory where he had published numerous papers.
His contribution to scattering theory at Pakistan Atomic Energy Commission had made breaking discoveries to the field of nuclear physics.