I am running under a homeloan. Now I am in a trouble thus don't want to pay emi .

Hello Sir, There is property/plot around 2500 sq.ft which is the name of our mother (who is alive). We are two brothers and one sister. Myself is the elder one. I took a construction loan back in 2017 and invested around 55 lacs in it along with my personal saving 12 lacs. The loanee is my mother where she doesn't have any income. I am basically the co-applicant and paying the whole emi amount nearly 50k per/month as of now , I am paying from my salary as ecs deduction. Initially when I took the home loan in 2017 , the loan amount was only 32 lacs and emi was also very less like 28 K (for 20 yrs tenure) but later my brother asked me for a help so that he could stand of his own feet . It was a verbal deal that he will take some amount from me which I will give him as homeloan top up , as the interest rates of these homeloan topup loans are low and for 15 yrs by default. I thought he would help me in re-paying the homeloan. But he is not listing anymore and I am paying the whole emi (28+22) per month. He is not responding to my emails and calls anymore. And it been deducted from my sal. Thus I decided not to pay the emi any more . Because my personal life is in problem. Please suggest what should I do now. So that the loss should be minimized and I could take future loan for my kid and wife for any future issue.