Bollywood actress Richa Chadha has apologised for joking about a person's 'bipolar' condition last year. Richa says, she has started understanding what mental health means and has hence issued the apology.

"I think last year I made a joke about someone being 'bipolar'. The joke was borne out of a petulant desire to seem witty in even less than 280 characters. As I am now only beginning to grasp what #mentalhealth means, I just want to apologise and couldn't have said this sooner!," the actress tweeted on Monday. Netizens lauded the actress for her honest confession.