But it may not have been down to maternal instinct alone that Mrs Kaur chose to become a mother for the first time aged 72.
Mr Gill's father Uttam Singh, who passed away eight years ago, wanted the property to be split between his children.
However Mr Gill claims his four siblings refused to give him his share because he had no children of his own to take care of.
Mr Gill said: 'When this fight started, I was in my 40s so my wife and I tried to have a baby but there was some medical complication.
'We went to see many doctors but it was the 1970s and 80s, so medical facilities weren't that great.
'It was embarrassing to not be able to produce a child, no doubt, but we got caught with litigation.'
The couple said they had almost given up on having children when they saw an advert for a fertility clinic in Haryana.
Using donor eggs Mrs Kaur gave birth to a healthy boy in April after two years of treatment.
She said: 'God heard our prayers. My life feels complete now. I am looking after the baby all by myself. I feel so full of energy.
'My husband is also very caring and helps me as much as he can.'
She added: 'When we saw the (IVF) advert we thought we should also give it a try as I badly wanted to have a baby of my own.'
Anurag Bishnoi, an embryologist, is the owner of the National Fertility and Test Tube Baby centre, in Hisar, where Mrs Kaur received her treatment.
He said: 'For them it is a time of great happiness…in Indian law they don't allow adoption after 45 years of age.'
Speaking about the birth of his baby son Mr Gill said: 'People say, what will happen to the child once we die? But I have full faith in God.'
-DailyMail