I worked in the area of theoretical nuclear physics for my Ph. D. thesis entitled, "Theoretical investigations of hadron collisions with polarized beams and/or targets: A model-independent approach",  under the guidance of Prof. G. Ramachandran, was devoted to the study of spin-dependence of hadron collisions with polarized beams and polarized targets. The approach was empirical and model-independent and utilized the power and elegance of the irreducible tensor formalism. The specific collision processes considered were: pion production in NN collisions, np and Nd radiative capture and double pion production in pd collisions. The above approach not only lead to an elegant elucidation of the spin structure of the collision matrix but also to exact partial wave expansion of the collision amplitudes of all the above mentioned collisions, valid for all the relevant energies.