And, after Omkari controversially underwent IVF treatment, the couple's wish was granted, when the twins, a boy and a girl, were delivered by Caesarean section. Charan Singh, a farmer, said they gave up everything for the 5,000-pounds treatment using donated eggs. He sold his buffalos, took out loans and spent his life savings - but said: "A son makes it all worthwhile."
"At last we have a son and heir. We prayed to God, went to saints and visited religious places. We left no stone unturned and God has rewarded us. The treatment cost me a fortune but I can die a happy man and a proud father," he added.
The twins, born one-month premature and weighing 2lb 9oz each, are healthy and expected to survive, according to doctors at Jaswant Roy Speciality Hospital, where they are in incubators.
Omkari added: "If I am the world's oldest mother it means nothing to me. I just want to care for my new babies while I am still able. We have got an heir - that is all we ever wanted."
Omkari had a son years ago but he died, reports The Sun.
"For eight months the pregnancy was hectic and very painful. But I have given birth before, so I knew what to expect. Sometimes, you have to face the pain if you want something good. All I care about is that my children are healthy," she said.
The world's previous oldest mother was Adriana Iliescu, a Romanian who was 66 when she gave birth to a daughter in 2005.