Six girls Mansi. Shweta, Monika, Payal, Aarti, and Kajal are siting around a circular table facing towards the center(not necessarily in the same order). Kajal is to immediate left of Mansi. Shweta is third to the left of Mansi. Payal is second to the right of Kajal. Monika is not second to the left of Mansi. Who is fourth to the right of Aarti?

Monika

Let us assume the girls are sitting around the circle, with seats numbered 1 - 6,

1. Kajal is to immediate left of Mansi. Shweta is third to the left of Mansi.

⇒ Mansi is placed at position 1, then Kajal sits at position 2 and Shweta is at 4.

2. Payal is second to the right of Kajal. 

⇒ Payal is placed at position 6.

3. Monika is not second to the left of Mansi.

⇒ Monika cannot be at position 3, thus she is placed at position 5. Remaining position is filled by Aarti, such that the complete arrangement is :

The person fourth to the right of Aarti is Monika.