Veena Jhamb was found guilty by Additional District and Sessions Judge Reetu Tagore of killing Ranbir by poisoning him.
Jhamb, who is also a former President of Indian National Lok Dal's women cell in Hisar, was ordered to pay a fine of Rs 15,000 as well. If defaulted to do so she would have to undergo an imprisonment of another six months.
According to the prosecution, the police had registered a case on May 16, 2009 against Veena Jhamb on a complaint of victim's brother Bhanwar Singh Saini.
Saini had alleged that his brother Ranbir alias Tillu died after taking some poisonous substances which was given by Veena Jhamb when he had visited her house.