Ghosts in Indian Movies- An Open Thought

Having stuffed with lots of ghost Stories, TV serials & Movies, during childhood, I have always found, many things in common in them like:

• Ghosts appear specifically in night that to after 12 pm (Indeed they are very time specific);
• have Long disheveled hair (Needs to Shampoo daily - or may consult Sainaz Husssian who looks like one of them - No offence)
• Slow walk ( might have got the Strain from long duration of sleep)
• Scratched face; (might have fallen from Bicycle)
• Dual pitch voice ( I don't know how they manage to modulate - Needs experts From MIT to analyze)
• And the famous - White Shari. (One can never imagine of a Indian ghost without white Shari, as if it's their uniform or something like that.)

I have always imagined why not they wear something else just for a change. Why they prefer to appear at night, what is there bad in day time, are they sacred of it?

Ghosts are actually stereotyped by Indians Thriller movies, TV serials & Stories. As Indians are stereotyped by as Turban head yellow yellow dirty fellow by Hollywood movies.

Ghost actually are...........

I don't know how they are, but must be different from, as they are shown in Bollywood and Hollywood movies.