Mutation Khatian. After purchasing land every body need to apply for mutation khatian or kharij khatian. When we applied for this, they wanted BDT 5000, finally the deal was with BDT 4500. I gave him 2500 in advance. But later he was killing time with lame excuse. That's why I contacted with senior management and finally I got return the excess amount with Mutation Khatian.