Diwali 2019 wishes and greetings: How to wish somebody a happy Diwali

Diwali 2019 greetings: What do you say to wish someone a happy Diwali?"ExpressWhat are the best Diwali greetings and messages and how do you wish someone Happy Diwali?"The SunWhat is Diwali and what to say to someone celebrating the festival?"Metro.co.ukV