Raihan Vadra, son of Priyanka Gandhi and Robert Vadra, is set to celebrate his engagement to longtime girlfriend Aviva Baig at Sujan Sher Bagh near Ranthambore National Park. The private ring exchange ceremony is scheduled for Thursday, January 1. Rahul Gandhi is also expected to attend the event. The family is staying at the luxurious safari-style property, known for its wilderness setting and 1920s-inspired ambiance.