@@rajkvt1508 The production cost of A4 size paper is significantly higher in Kerala than in Tamil Nadu. This enables wholesalers from Tamil Nadu to sell A4 reams at substantially lower margins, making it challenging for Kerala-based businesses to compete on price. Buying bulk quantities of A4 reams from TNPL (Tamil Nadu Newsprint and Papers Limited) and reselling them is generally more profitable than establishing a A4 paper production plant in Kerala.