A group of friends are sitting in an arrangement one each at the comer of an octagon. All are facing the centre. Mahima is sitting diagonally opposite Rama, who is on Sushma's right. Ravi is next to Sushma and opposite Girdhar, who is on Chandra's left. Savitri is not on mahima 's right but opposite Shalini. Who is on Shalini's right?