Asian Big Bazaar — charges for carry bag

Address: Jabalpur, Madhya Pradesh

Today i shopped in big bazaar located at kfc mall, gwarighat, jabalpur (M. P.). After payment, carry bag was given to me for carrying clothes, & charged me 20/-
I asked about it & told, it should be free as vegetable sellers give us veges in carry bag. But they told me, it's company's policy to take charge for carry bag.
While few days before, i read an article about consumer forum's decision on a matter regarding charging 3/- for carry bag by bata. Company was charged 9000/- for this act by consumer forum...

I told this at cash counter (Big bazaar), but they didn't mind it & just charged & told me to pay, as they created bill already..