Mother in law`s property can be share to her grand sons?

The mother-in-law's property (even though she might have got it from her father) is her private property.  During her life time, no one [including her own son(s) and daughter(s)] can claim any share therefrom.  As such, your sister or the children of your sister cannot make any claim for a share from the said property.

Thanks for your mail, then can we claim for any expenses  as like monthly some amount as expenses for her grand children.  As she is not at all willing to give a single bug to my sister.  And I just wanted to know is there any law for widows rights and her children.

The law of the rights of the widow applies only  to the estate of the deceased husband alone. not of the mother 

I agree with Mr. Ganeshan.

Could you please explain me in deep.....

There is a ruling of the Supreme Court of India which rules in favour of  daughter in law's right in the property of her in-laws. I had seen it in JT quite some time back. You may contact me on legallhelpp@yahoo.in after 3-4 days so that I may search this ruling and email it to you.

There is a ruling of the Supreme Court of India which rules in favour of  daughter in law's right in the property of her in-laws. I had seen it in JT quite some time back. You may contact me on legallhelpp@yahoo.in after 3-4 days so that I may search this ruling and email it to you...... If it is there please let me know..... I am waiting for your kind reply.