What is forbidden is wanted most?

But Saras has promised his mom not to hurt dad so he writes girl a letter who is same age as him that he cannot marry because of personal reasons. Hence she should convey same to her papa and mom. Usually this issue would not arise if his real mom was alive he would have told her to speak to his dad and convince him or she would speak to Kumud mom's and settle marriage proposal. Hence if you see in beginning Saras ask suggestion from friend Sunny and then write a letter. Srasa has no one so he only has to convey the bad and sad news of rejection. Humans desist from announcing bad news hence they usually write mails. Hence Saras wrote a mail.

Actually Saras should have called Viday Chatur and told he cannot marry instead of writing letter. But Saras felt Kumud is same age and will understand and wrote letter. But no human in world likes rejection from any others hence Kumud is hurt. But what i feel is instead of acting maturely she has taken kiddish way of not showing face. In that process instead of punishing him she is actually attacting him towards her.

What is forbiden is always most wanted? So Saras instead of rejecting her proposal and going off is getting attracted to her because she has forbidden him from seeing her face. She is using an age old tactic employed by all people to get attention they seek. But her taunts are another thing. Saras never taunted her because his dad forcefully announced his marriage to her.

If she was so angry who go fan him at night? Why go to say sorry but run off for saving her dad?

So she appears more childish or shceming than mature in this serial. While in novel Kumud was a very mature and intelligent girl. Here it looks more like her behaviour is very childish not mature.