Dispute in land division among 3 sons

Hi my father has died 14 years back, he left about 2400 square feet in manapakkam and also total of 5 grounds in potheri. In which we all decided to sell about 3 grounds for our personal purpose and keep 2 grounds for our sons and daughters. Now to sell those 3 ground we have registered in our big brother name. Now the complete 3 grounds has been sold by putting as plots. Though the amount was not spent commonly and it was taken for his own purpose of buying things for his own room. Now since we have an very old house in manapakkam with 2400 square feet. We requested him to divide equally among the 3 and give us to construct the house. We provided him all suggestions, 1. To divide road facing into 3 2. To divide east facing into 3 3. To divide 2400 equally among 2 sons and give the remaining son with the potheri 2 ground land. But he his not accepting any option, but he tries to take all land for his own by keepingy mother in his hand. Even though my mother knows about his selfish decision. She supports him and she is also regretting to divide the land. In this my second brother plays a double game by supporting him so he will get his share without any problem. Kindly provide your advice. As this has been going through for 2 years and still he sits ideal in home and eats all the sold money.