Are we watching the same show? The writers smartly established that ratnagiri has ONE computer and the Internet connection is very slow. Now it may be very DIFFICULT for us tech savvy users to understand this but there are many villages and towns which have hardly to no Internet connection at all. A big city like Rajkot has Internet cafes but they're very slow and very few homes have the Internet at home.
Why don't the two call?? Well SC isn't even interested in contemplating a relationship forget directly talking to her. If FANS can send boxed gifts with letters to their favourite CELEBRITIES (though they've never met) then why can't saras and kumud write letters to each other? Is it truly harming our lives if the hero-heroine write to each other? The letters in the novel are really integral to the story and one letter in particular which has a lot of soul and I don't think a printout from the computer can give the same effect. It wouldn't do us much damage if we accept that there are some parts of the novel SLB wants to stay extremely loyal to.
Another matter of amusement is that Kumud has apparently fallen in love with the eyes (eyebrows?! Or whatever)...! When did she say she's in love? Don't forget she hasn't said yes but she couldn't say no either. Those eyes make her curious especially because she dreamt about them the night before. You know how some of us drool over the body of our favourite actor and start to phangurl over him? Well Kumud is fascinated by the eyes, she's drawn to them.