second marriage without divorce

If first wife accept for second marriage with written document, second marriage without divorce is legal or not? If it is legal, then which type of written document need from first wife? Please give me complete details about document.

There is no other way other than getting a legal divorce for the purpose of getting a second marriage. If she is ready to give a written acceptance, why cannot she get divorce instead?

 Even if the wife consented for her husband's second marriage, it would be treated as illegal.  

yes, mr goyal &mr. borah right.

Agree with all above expert.

The second marriage will be void, but this can save your from bigamy in future if your first wife tries to put the same. The government or the police will not do anything and put the charges of bigamy until the first wilfe puts the charges. If you are still marrying, then its upto your risk.

divorce on document is void.

mr nali - what is divorce on document?

Divroce on document means NOC obtained by the spouse ...  :)