Medical negligence during delivery,newborn in ICU what can be done

I happened to have diabetes in my pregnancy which means I should be handled with prime care. I got my labor pain on 29 Nov and my baby was found to pass meconium which iS poisonous for baby. The doctor saw this. But she was too irresponsible that she delayed my operation to tomorrow because that day she had other affairs to attend. Because of prolonged stay in meconium my daughter as soon as born was admitted in ICU . Her first two months was spent in ICU . I have proofs that doctor delayed my operation. I Visited that doctor after my baby was home and recorded that she saying saw meconium one day earlier. And I have all medical documents supporting my case. I would like to file a case against that doctor. Because of her negligence we lost around 13 lakhs and my baby is still not fully cured. Because of meconium her brain seems to be affected. I want to sue that doctor. Please help.