Chaayos, a tea café start-up founded in 2012 by IIT alumni, aims to cater to tea lovers in a market dominated by coffee cafés. Recently, they faced a PR crisis due to a campaign using the term 'mental', which they clarify was not intended to offend but celebrate the passion for chai. The company has issued an apology and reiterates its commitment to fulfilling customers' love for tea while managing their social media presence and strategy.