Abandoning mother and sister

I am India my name is christinah and my mother name is sagayamary. She is a single mother and father is of no use. My mother sacrificed a lot like working in factory and even sold her properties in our native to make my first elder brother study with half by educational loan and balance by the money from her sold properties. He completed BE and started working in chennai. My 2nd elder brother is same like my father he is of no use. My first elder brother got job for him he has studied DME but he neglected to go to work. With my first brother's earnings and my mother's savings first they bought a house and 2 lands after 6 years they started building a house in our new land but he refused to pay needed money and gave less but my mother equated it with her savings suddenly before 1 yr my second brother contacted the first brother by saying that he is 15 lakhs debt and from that time he gave 5 lakhs and stopped the site work and stopped giving money and he is telling us to die he is not taking any Indian calls