My desired output:
I tried with packages multicol & ltxgrid to achieve this output, but, facing the below difficulties:
Package
ltxgridhas some compatibility problems, as per the comments from this link lineno option switch not working for 2 column along with ltxgridPackage
multicolis not supporting Floats inside themulticolsenvironment.
Appreciated your response.

\documentclassand ending with\end{document}. Does this help: https://tex.stackexchange.com/a/233904/124842 – Bobyandbob Jul 12 '17 at 07:07