Settlement deed by parents undergoing cases

My parents have written a settlement deed of a property to us. The property is in the name of my mother. Property purchased through partial home loan and partial amount paid as cheque by her mother. My mother was working for a private firm and left the job due to sexual harassment by the MD of a renowned company. She could not complain in her office as there was no ICC & moreover it was the MD (FOUNDERS LEGACY FAMILY) .MD came to know that my mother had enquired the hr within a few days managed to terminate my mother immediately citing some other fabricated issues. My mother was depressed for a couple of days as she had been in that organisation nearing a decade. She wanted to get her complaint filed on the MD but knew that since he is an MD the cops will not file an fir & had sent a complaint to the relevant authorities, CM CELL,COMMISSIONER OF POLICE,NCW, Mrs Maneka Gandhi, LABOUR COMMISSION., In the mean time my mother was asked by the PA of another director to send to the MD &other hierarchy an apology email & request a relieving letter. The company on receiving the apology email had called my mother & informed that relieving letter will be given conditional - not to be disclosed to any existing employees. In the mean time the cops had gone for enquiring the MD on complaint raised by my mother & was not allowed and the MD fled abroad thereby ensuring filing a fir on my mother and family members by fabricating a criminal case citing loss to the company. My mother could not file an fir on MD and was on the run hide out. Cops & Judiciary system were highly influenced. Few years later a civil suit was also filed. Due to this mental trauma my mother became ill and it led to brain seizures and underwent a brain surgery(diagnosed tb meningitis) & still under medication. Now tira is going on for both crp and cs. Queries 1. Can the settlement deed be revoked by them through civil suit filed?