M-Polynomial as well as degree based topological indices are such mathematical calculations which play a vital role in understanding the structure related physical, chemical and biological properties of the nanosheet, nanotube and nanotorous. Topological indices are statistical tendencies that frequently give a picture of quantitative structural movement, interaction and associate certain corporeal and chemical properties, for instance boiling point, solidity, melting
point and straining energy of relevant nanomaterial. In this research work, we come across
central forms of M-Polynomial of H-Naphtalenic and C4C8
nanotubes along with nanotorous. In
addition, we develop topological indices on the basis of degree for the discussed hydrocarbons with the help of M-Polynomials.