How many persons are sitting between Om and Nitin?

Answer the following questions based on the information given below. Nine friends Meenu, Priya , Aman , Nitin, Radha , Prerna ,Om, Richa and Diksha are sitting in a straight line with four of them are facing south and rest are facing north. The following information is given about them. (i) Om sits second to the left of Diksha who is facing south. (ii) Priya who is setting exactly in middle is facing north. (iii) Prerna, who is facing north is not an immediate neighbor of Richa who is second from right end and facing south. (iv) Diksha who is sitting at one of the ends is third to the left of Meenu. (v) Meenu is second to the right of Aman who is not an immediate neighbor of Om. (vi), Nitin sits second to the right of Radha who is not an immediate neighbor of Aman.