A jealous woman who killed her lover by lacing his curry with poison is facing a life sentence after being convicted of his murder.

Lakhvir Singh, 45, was said to have killed Lakhvinder “Lucky” Cheema, 39, in his Feltham home because she could not bear the thought of his marriage to another woman.

He had been due to marry Gurjeet Choongh, 21, on Valentine's Day, last year. But on January 27, they both became violently ill after eating leftover curry which had been in the fridge of the home, in Princes Road.

Despite a desperate 999 call by Mr Cheema and last ditch efforts of friends and relatives to rush the couple to West Middlesex Hospital, Mr Cheema was dead within hours and Miss Choongh was left fighting for her life. The pair had been poisoned with Indian aconite - known as the Queen of Poisons - in the first recorded case of its use in England since 1882.

When Singh was arrested the following day a small packet of the poison was found in her coat pocket and another in her handbag. The married mum of three had been the lover of Mr Cheema for about 15 years before his engagement to Miss Choongh.

After a month-long trial, Singh, of Southall, west London, was found guilty at the Old Bailey, on Wednesday, of murdering Mr Cheema and causing grievous bodily harm with intent to Miss Choongh. She was found not guilty of attempting to murder Miss Choongh.

Today Singh was waiting to hear if she is to be convicted of an earlier attempt to poison Mr Cheema in December 2008.

The judge has told the jury he will accept a majority decision. Singh’s sentencing will take place after the final verdict is returned.

Detective Inspector Tony Bishop of the homicide and serious crime command said: “This was a premeditated murder by a woman who could not accept that her lover had found happiness with someone else and planned to get married.

“Singh planned this murder, we believe bringing the poison from India, and added it to the food that she knew would be eaten by Lucky and Gurjeet. The poison that Singh used caused appalling symptoms meaning that the last hours of Lucky's life were extremely traumatic and must have been terrifying.”

Singh, who denied the charges, told police during interview that she was not the poisoner but did not give evidence during the trial.

Crown Prosecution Service London lawyer, Michael Mulkerrins, said: “Her actions caused devastating consequences and I hope that today’s verdicts provide some comfort to all of those affected.”