According to sources, they came to Parkal on Thursday to participate in ‘mass prayers’ organised at a church in an attempt to get rid of their financial and health problems.
Police said the victim identified as Raju (45), from Venkat Reddy Nagar was depressed and doused his body with petrol and set himself ablaze in the bathroom.
According to police, the lady, a resident of Mankammathota of Karimnagar town, reached LMD to end life by jumping into the waters due to family disputes.
The family left behind a suicide note stating that no one was responsible for their suicide and that they decided to end their lives due to health problems.
The man took the drastic step after alleging that the trader had cheated them by getting three acres of his land registered illegally on the latter's name.