Packaged consumer goods maker Dabur India chairman Amit Burman has picked up stake in emotional and mental wellness platform No Worry No Tension Healthcare (NWNT) in his personal capacity in a deal that is part of pre-series A funding. NWNT, a bootstrapped startup set up by psychiatrist Sandeep Vohra in 2011, uses augmented human intelligence-based technology to screen, evaluate, prevent and treat emotional and mental health disorders, information on its website said.