Are ghosts 👻 real 3?

It has been really a night full of tension, fear and uncertainty. No one is thinking of sleeping, everyone is waiting eagerly to see the first ray of sunshine. But the day seems unbreakable. In the meantime, Jui's mother in law falls asleep. Everyone becomes kind of tired because of the tremendous mental torment they have been going through. Some how they pass the night and the sun starts shining on the world. Meghna is prepared to take to the religious person who is sitting in the front room. He starts talking to her. She gets a fully fictional voice which is never heard before. The man asks questions one by one:

Who are you?
I am Rabita.
How have you come here?
I went to the store to buy sweets, but was denied by Sumon.
So?
So, I followed them while they were returning.
Why have you possessed her?
She is very dark.
No! She is very fair.
She's fair from out side but deep down inside she is dark. She doesn't want to see others' happiness.
(Everyone gets ashemed at this point)
Now, you have to leave her alone.
You need to provide us with sweets.
Ok, we will. How much do you want?
11 kg Cham Cham ( dark black sweet).
That's too much. Let's settle it with 2 kgs.
That's too less.

Finally, 7 kg is negotiated and in the morning like during 7:30-8:00 am she is supposed to take the sweets in the nearby graveyard. Two brothers along with Meghna go there by an auto ( regularly found in the village) and on everyone' surprise she is taken inside the informed graveyard, under the specified tree and the moment she is forced to keep the sweets there she gets senseless. She is then brought back home and when she gets up she is the usual Meghna.

Do ghosts 👻 really exist?