Mumbai, Nov 3 (ANI): Bollywood actor Vivek Oberoi celebrated the festival of lights Diwali in a special way with 300 cancer affected children in India's showbiz capital Mumbai. The actor said these children have become a family and he likes to celebrate with them. Festive mood has gripped people across the country as Diwali is being celebrated tomorrow. Actor Vivek Oberoi also said that these children are a source of inspiration. Diwali is celebrated with great fervour and gaiety all over India as it marks the return of Hindu god Lord Ram to Ayodhya in northern India after he defeated Ravana, the powerful king of Lanka.