On a heuristic point regarding the origin of tachyons and a revamped   definition for them
  As it follows from the classical analysis of the data, the paper is intended to solve one of the main problems in the physics of tachyons, they are having imaginary mass. Further we use quantum mechanics to deal with the matters concerning the particle. The paper also considers the physical viability of tachyons in real world. The paper also considers the natural occurrence and persistence of tachyons 
Aasis Vinayak.P.G