Microsoft Corporation co-founder Bill Gates has praised the Bollywood film Toilet: Ek Prem Katha and said that it has educated audiences about India's sanitation challenge.

He mentioned the movie while tweeting out the seven things that inspired him in the year 2017.

In the tweet, he said,  "There's no denying that 2017 was a really tough year... but it also delivered some amazing moments of hope and progress. Here are some inspiring tweets that you may have missed," Gates tweeted on Tuesday.

Later he re-tweeted a link and wrote: "'Toilet: A Love Story,' a Bollywood romance about a newlywed couple, educated audiences about India's sanitation challenge."

Directed by Shree Narayan Singh, Toilet: Ek Prem Katha revolves around a man named Keshav, who falls in love with Jaya and gets married to her. However, she complains that there is no toilet in the house and he tries to pacify her with temporary arrangements.