तुम हुस्न परी तुम जानेजहाँ, तुम सबसे हसीं, तुम सबसे जवाँ And you just sang सौंदर्य साबुन निरमा in your head, right? From Lifebouy hai jahan to the Liril waterfall, soap adverts sure were a lot of fun to watch. Unfortunately, despite these fantastic ads, people never really bought soaps. In fact, chances are high that you have never really…