Where can I watch Sita Ramam in United States?

Afreen, a rebellious Pakistani student sets ablaze the car of an Indian in London. Angered Afreen returns to Pakistan to ask for money from her grandfather that she has to pay in a month's time as damages. However, she gets to know that he is no more and the only thing he has left for her is a letter-delivering task, written by Ram to Sita. As Afreen sets out to find Ram, there begins her journey of discovering the secret behind the 20-year-old letter.