Six people, Ambika, Charu, Riya, Ashi, Rahul and Ajay, are sitting in a straight row facing north (but not necessarily in the same order). Only two people sit between Rahul and Riya. Neither Ajay nor Riya is sitting at any of the corners. Ashi is sitting second to the left of Riya. Ajay and Charu are immediate neighbours. Who is sitting immediate right of Ashi?

Ashi is sitting second to the left of Riya.

Ashi _ Riya

Only two people sit between Rahul and Riya.

Here Rahul is possible in two places which are given below in Case(i) and Case(ii).

Case(i) Ashi _ Riya _ _ Rahul

Case(ii) Rahul Ashi _ Riya

Neither Ajay nor Riya is sitting at any of the corners.  Ajay and Charu are immediate neighbours.

Case(i) Ashi _ Riya Ajay/Charu Charu/Ajay Rahul

Case(ii) Rahul Ashi _ Riya Ajay Charu

In both of the cases, Ambika is remaining which can be placed on the blank space.

Case(i) Ashi Ambika Riya Ajay/Charu Charu/Ajay Rahul

Case(ii) Rahul Ashi Ambika Riya Ajay Charu

Ambika is sitting immediate right of Ashi as per both of the cases.