Do daughters have right in mother's self acquired property

My mother was a govt employee and she is still alive. Few years back my mother purchased land in my name with her earnings( i was major at that time and was studying my masters). The property got registered in my name only without mentioning my mothers name anywhere in the document. It was totally my mothers self earned money she had given to me. I have two sisters who is not in good relationship with my mother, now claiming that, they also want share in my land which my mother had purchased in my name. my question is do they have any rights to claim the share?