Pulse, a raw mango flavoured tangy candy, launched by DS Group, makers of Rajnigandha Pan Masala and Catch Bottled Water, in mid-2015. Last month, the Re 1 candy clocked Rs 300 crore in sales, beating MNC blue chip munchie brands such as Oreo (Rs 283 crore in sales, launched in 2011) and Mars bars (Rs…