Arranging them according to the given information,
Six friends Govind, Sarayu, Rakul, Smita, Hema and Geervan are sitting in a row.
1. Hema is third from the back end of the row.
2. Only one person is standing before Govind and Geervan is between Govind and Hema.
3. There are two persons between Sarayu and Hema and Rakul is between Hema and Smita.
So, Govind and Geervan both are standing between Sarayu and Hema.
Hence, "Govind and Geervan" is the correct answer.