KUCH TO HAI TERE MERE DARMIAN-a unknown connection

An unknown letter

It's morning time and whole family is busy in their regular routine when a letter comes in vivan's house.
Dadaji"kya hua bahu kiska khat hai"
Karuna"pata nhi papaji.naam nhi likha hai
Ananya"envelope ke ander likha ho. khol kar dekhte hai"
Karuns opens the envelope.Inside the envelope she gets a letter and a red rose.
Vivan"letter ke sath rose kisne bheja"
Ananya"aunty letter to padhiye"

Karuna(stressing each word)"ae mere sapno ke rajkumar.
Phul tumhe bheja hai khat me phul nahi mere dil hai.Priyatam mere ye to batana kya ye tumhare kabil hai.
Ek chota sa tohfa tumhari prem diwani ki taraf se.
Ananya and karuna look at each other for a sec.
Khushi'ye kiske liye aya hoga?
Everyone look at the letter in karuna's hand then Everyone look at vivan doubtfully.
Vivan"are mujhe kya dekh rahe hai mai chota baccha hu"
Karuna"ha to aaj kal chote baccho ka bhi kya bharosa "
Vivan"are mummy  mai sach me innocent hu" .
Karuna is still looking at him doubtfully
Vivan"apki kasam"
Karuna"vivan meri jhooti kasam to nhi kha sakta.To phir ye.."
They all look at dadaji for a sec  then look at each other and nodded no simultaneously.
Ananya"ye letter,vivan ke kiye nhi aya,dadaji ki umr letter ane jaise nhi hai aur hum teeno ke liye to aa nhi sakta.tab to ye pakka..
Everyone look at Dev teasingly  who is descending stairs.He looks at all of them cofused not knowing reason of their look.
Karuna ji"kya baat hai Dev tum to bare chupe rustom nikle'
Vivan"bhaiya mujhe to bata dete"
Khushi"vivan abhi tune ne kaha na tu chota hai to phir bhaiya tujhe kyu batate.
Ananya"kisi aur ko na sahi but at least mujhe to bta sakte the na dabbu after all I am your friend"
Dadaji"waise kaun ha wo?"
Karuna"ha hume to laga tha ki tum aur Ananya.....
Ananya"what! No way aunty .Apne sabse bade nightmare me bhi nhi.

Dev"kya no way?kya nhi bataya?mujhe koi batayega yaha kya baat ho rahi hai?
Ananya"tumhare liye ek letter aya hai"
Karuna gives him the letter .He opens the letter and look sat the faces who is still looking at him and smilingly teasingly.He reads the letter and gets a big shock.
Ananya"letter per naam nhi likha tha issliye humne padh liya"
Dev"excatly letter per naam nhi likha to tumhe kaise pata ye mere liye hai"
Ananya"iss ghar me tumhare alawa aur kiske liye ye letter aa sakta hai"
Dev look at vivan doubtfully.
Vivan"mujhe mat dekhiye bhaiya.pehla doubt mujh per hi tha.maine abhi abhi agni pariksha di hai"
Dev"ha to ho sakta hai na ki ye letter kisi aur ka ho aur hamare ghar me aa gaya ho.
Everyone(teasingily)"ha,ha ho sakta hai"
Dev"are mai sach keh raha hu"
Everyone"ha hume pta hai".
Dev tried to explain but stops, looking at their look.He knows that they are not going to beleive him.
Dev" vivan chalo mai tumhe bus stop tak chor deta hu"
Karuna"ha ho sakta hai waha bus ke sath koi aur bhi intezar kar raha ho.
Everyone starts laughing .He leave from there dragging  vivan with him.
At afternoon
Karuna is alone in house when two saint come in her house.She welcome them whole heartly.
Saint"tumhara ek putra hai jiska naam v se suru hota hai.
Karuna gets impressed by him.
Karuna"ji baba.mera beta vivan.wo iss waqt school me hai.
Saint"uss per ek bahut bada khatra aane wala hai.
Karuna becomes tensed hearing this.She requests baba to protect her son and he gives him a fruit and ask her to make her son eat it.Karuna takes the fruit and bent her head down for blessing when she looks up there is no one but fruit is still in her hand.
Behind her house.
Saint appears there and transform into bhaymar.
Bhaymar"Iss fal se tumhare bete ka nhi hamara sanket khatam hoga wo bhi hamesha ke liye.
He starts laughing .

So how was the chapter?
Kisne likha hoga letter?
What is the plan ho bhaymar?