Dhanteras is the beginning of one of India's most celebrated festivals, Diwali. It is considered an auspicious day to purchase gold and silver as it is believed that these precious metals protect against bad omens. So, this Dhanteras, we decided to get our earnest listeners a piece of advice from the maestro in business, Tarun Mathur, the CBO at PolicyBazaar.com, who will share how to invest smart with Guaranteed Return Plans.