Myntra.com - Addtional taxes applied by myntra

I was placing an order for a perfume. The mrp was of rs **** on which **% discount was offered by the myntra. Com. The product was costing me of rs ****. But at the time of payment additional tax of *** was charged by the company which is unjustifiable. When the company is providing discount on mrp then how it could charge additional taxes. The after discount price should be inclusive of all taxes. The company may lower its discount rate if its not profitable for them but should not misguide the consumer by showing huge discount and after that applying additional taxes. This type of marketing startegies are not at all acceptable and the company shall take care of the customers sentiments.