Child abandonment

Hello Sir, i have a certain question related to child abandonment. my name is Namrata and I am 26 years. my mother left me with my grandfather and my aunty when i was 2-3 years old. My father use to drink excessive alcohol due to which she decided to leave everything behind.. My grandfather took all the burden of educating me and taking proper care of me. My father too left the house as he could not digest the fact that my mother left him. Few years passed by when i heard one day that my mother got married to some other person. She didn't even bother to visit me once. I grew up with full care.. My grandfather also passed in the year 2010 and that time i was in my 2nd year. At least with the limited bank balance i could complete my graduation. Futher pulling on i instantly got a job in a pvt firm with a decent salary with which i can just fulfil my basic needs. As i am from a middle class family i cannot except much from my relatives even. In the year 2013 my father too passed away.. Now only me and my aunty we stay togather. I really do not know where my mother is.. But now i realise that why this thngs happened to me.. Now i am so financially crunched.. How can my mother who gave me birth ran out of her responsibilities and now has a separate family.. I just want to know can i fight for my right in legal terms.. Can i just get some monetary relaxation from her to make my life a bit easy.. ??? Kindly help