Child custody and Divorce

Dear Sir, Last yr we got married as she is working ( semi govt employee ) in other city .... she said it vl take 6 - 8 months for transfer... i agreed ... she came twice after marriage to my home ... never spend a peny... i used 2 book her tickets as per her convenience ... pays all her mb bills.etc etc...even the marriage exp .. her relatives stay etc...were borns by us .... as marriage was planned in my city... she always blames me for no reason that my parents doesnt talk 2 her brothr n mother / in marrige we hv dis respected their relatives... thn i planned baby with a thought tht things vl change but thn her blames got increased tht i nt tkng proper care of her etc etc.. she stayed wih her mom for another 6 months n always says my tranfer is in process.. 4 months before delivery she cm ... again i spend every for delivery baby girl vs borned in jan ... n she went again to her moms hm in feb one month prior to her pregency leave saying tht i need 2 spend some tm with my mom... after gng thr she again start blaming tht v hd nt gvng her proper food ... medical care etc... now she is staying with hr mom...i hv nt seen my baby from last 4 month.... pls adv if i file petition for divorce can i get a custody of my 6 month old child... nw again she is demanding ao many things .... indirectly..... pls advice how should i proceed ....