Priyanka-Nick fly down for a roka ceremony

Siddharth Chopra -- Priyanka Chopra's younger brother, Nick Jonas's brother-in-law -- is all set to marry London-based Ishita Kumar.

Priyanka posted pictures of the roka ceremony at the Taj Palace, New Delhi.

'So proud of my baby brother', Priyanka wrote. 'Ishita, welcome to the family... You are so beautiful together... I wish you both the best for the future! Happy Roka!!'

Priyanka and Nick arrived in Delhi on Tuesday for the ceremony.

In all the pictures shared by Priyanka and her mum Dr Madhu Chopra, you can't sight Priyanka and Nick. It looks like big sis and jiju didn't want to hog limelight from Ishita and Sid on their big day.