Please clear one of my doubts as it is not getting clear by the above reply i.e. is everyone has to pass through these stages of Pashu, Pisacha, Pramatha, Rakshasa, Asura, Deva, Siddha one by one or there also may be a case where one leaps directly from Pashu or Pisacha to Deva and Siddha without undergoing the middle stages of Pramatha, Rakshasa or Asura? What is the meaning of Pramatha? What is the difference between Pisacha, Rakshasa and Asura🤨?

Pramathas are beings who live by the senses. You will find plenty all around. Pisachas are those who live in the lower vital worlds and draw upon the energies, resources and forces of others, stealing and robbing them. Rakshasas are those who are destructive, violent, crude and abusive. Asuras are intellectuals who misuse their knowledge for furthering their empire and ambition. Everyone has to pass through these stages though one can go through them rapidly or slowly. 

Also,it may happen that a person takes many births but does not make much effort to rise above whereas someone with lesser no. of rebirths with his conscious efforts makes great progress and take a leap in his ladder of evolution so it may happen that a person with less no. of rebirths is more evolved than the one with more no. of rebirths? Please correct me if i am wrong.

Not necessarily. The lesser births and leaps are the narrow intense journey, faster but not richer. The other journey is slower but wider and eventually more complete. To each his own. 

Affectionately,

Alok Da