Legal seperation from mother

As it is your are not responsible for any of your mother's actions either civilly or criminally - unless you actively participate in the same with common intention. However having said that, still if you want to sever all relations publicly by way of abundant caution, then you can take out a public notice in the newspaper purporting to do so, this may help.

Adv. Bharat Chugh

 I agree to Bharat's sound advise and to voluntarily add I state following;

1. Unlike in West where they have a legally binding agreement called "emancipation certificate" to separate from their Parents we in India have no such declaratory Laws in place.

2. In India it works other way round; parents can via two paper advertisement disown an adult child from property and related rights read with their adult childrens acts of omissions / commissions once children grow up and attains majority age as per Law.

3. However in your situation what you can do is submit in State Weekly Gazette half page Public Notice stating factually precise background and present emancipation and end the Public Notice with statement that I should not be held responsible for my mothers past, present and future misdeeds in any civil / criminal suits by any law in force or in future.