Hi, the second marriage will be null and void as per Hindu marriage act ...Fuether , you can register a FIR under 494 and 495 IPC for performing second marriage 

You should approach the nearest women cell of a police station or file a case of Restitution of conjugal rights in the court. 
Once you approach the women cell of police station, police will counsel him 
Alternatively a restitution of conjugal rights petition will also help in getting back your husband

1) Tell your husband that first you are to file adultery case against him and later on Bigamy if he marrys with that women.

2) Tell him later on he will be in big trouble as you will be not living with him and will ask to pay you huge alimony and monthy maintenance amount.

You should not divorce your husband 

2) if he marries during subsistence of earlier marriage file case of bigamy against your husband and girl under section 494 of IPC 

3) gather evidence about his second marriage 

4) if your husband deserts you after second marriage file DV case against husband seek right to stay in your matrimonial home , maintenance, compensation for mental torture undergone by you 

Mam see at this point you dont have much option as such see if they remarry you can seek divorce and file a case of bigamy but you cannot restrict there relationship as such. You can file a case of domestic violence and of mental cruelty upon the husband and can pray for restraining him from second marriage before court. 

But see the real thing is you cannot force him in this relationship so you need to talk to husband and correct everything or leave him and lead a peaceful life.

Dear Madam,

File number of cases against your husband and that woman. Get injunction order against your husband restraining him from marrying for second time. Before making any issue be financially strong and collect documents of your husband like property, income tax, educational certificates etc., In the meanwhile collect full information of that woman. Put a DV case and section 125 CrPC case against your husband. He cannot marry if you are strong mentally.Please go through the following which are relevant to you.

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Marriage and Family matters:

·         The Prohibition of Child Marriage Act, 2006 defines a ‘child’ as a boy under the age of 21 and a girl under the age of 18. This means that the marriage of a girl below the age of 18 is considered to be child marriage and is prohibited by the law. There are certain contradictions to this rule in personal laws. However, it is important for you, as parents, to understand the importance of encouraging your daughters to continue their education and empowering them in other ways rather than marrying them off at a young age.

·         The Medical Termination of Pregnancy Act, 1971 lays down the law regarding abortion in India. Right now, it is not easy to get an abortion even in cases of rape as this Act sets a number of conditions. However, this Act is soon to be amended.

·         Domestic violence is prohibited by law and is considered to be a criminal offence according to S. 498-A of the Indian Penal Code. Certain provisions in the Indian Evidence Act and the Criminal Procedure Codealso deal with this issue. Finally, a legislation devoted to this issue was enacted in 2005 – The Protection of Women from Domestic Violence Act.

·         Another common problem faced by married women is harassment from their in-laws for dowry. To battle this social evil, the Dowry Prohibition Act, 1961 was enacted, criminalising this practice. However, it still continues. It is important that parents do not give in to societal pressures and ensure that they do not provide dowry in any form.

·         While Indian law does not criminalise pre-marital sex as long as it is between consenting adults, there are no laws regulating live-in relationships. However, courts have developed laws on this subject through decisions in cases to such an extent that the law against domestic violence applies to couples who are in live-in relationships and children born out of such relationships are treated as legitimate in certain circumstances.

Sexual Abuse and Exploitation:

·         Various forms of sexual harassment such as singing lewd songs, eve-teasing, making sexual advances in spite of refusal, watching, capturing or sharing images and other media of a woman engaging in a private act without prior consent have all been criminalised by the Indian Penal Code. There is an entire legislation dedicated to sexual harassment in the workplace – Sexual Harassment of Women at Workplace Act, 2013.

·         As parents, it is important that you are aware of your daughters’ activities on the Internet. Today, many crimes against women are committed by sexual predators through online portals. Online harassment of women is prohibited under S. 67 of the Information Technology Act.

·         Any indecent representation of women is banned by the Indecent Representation of Women (Prohibition) Act, 1986. This law, as it is considered to be too narrow for this day and age, has undergone certain changes and an Amendment Bill was drafted in 2012 which broadened its scope.

·         Ss. 375 and 376(2) of The Indian Penal Code criminalise rape. These sections spell out 7 years’ and 10 years’ imprisonment, respectively, as the punishment for rape. The key feature of these sections is the requirement for consent by the woman in question for the act not to be considered as rape. Thus, as a parent it is important that you explain the concept of consent to your daughters at an early age. Intercourse with a woman of unsound mind or a girl below 16 years of age is considered to be rape irrespective of consent being given. Unfortunately, marital rape has not yet been criminalised.

Property Laws:

·         While traditionally, the rights of women with regard to succession and inheritance of property in India were next to non-existent, as of now, according to the amendments to the Hindu Succession Act in 2005, daughters have been given the same rights as sons with regard to inheritance and succession.

·         The Indian Succession Act does not differentiate between the heirs of the deceased.

·         Muslim women enjoy rights of inheritance though limited to some extent by custom and practice.

Women in the Workplace:

·         Women in India have the right to earn as much as men and gender discrimination is also prohibited at the time of recruitment. Ss. 4 and 5 of the Equal Remunerations Act, 1976 lay down the law regarding this.

·         The Maternity Benefit (Amendment) Act, 2017 has brought about certain groundbreaking laws which concern working women including the increase of paid maternity leave from 12 weeks to 26 weeks (S.5(3)) and ‘work from home’ options for new mothers (S.5(5)).

Organisations that help:

There are a number of organisations that work for the upliftment and protection of women such as the National Commission for Women, One Stop Crisis Centres (or) Nirbhaya Centres, National Association of Rural Women India, etc. There are also a number of NGOs working for women’s rights. Please keep your daughter informed of these organisations so that she knows who to approach in case of a crisis.

While keeping your daughter informed of her rights is a basic obligation of every parent, it is also important that you take a more active part in ensuring that your daughter has a better and happier future. By taking steps such as not providing dowry and by shifting the focus from marriage to education, you can do your part in breaking a cycle of abuse that has been going on for centuries. However, to ensure a complete change in society’s views on women, it is essential that you teach not only your daughters but also your sons to recognise the problems faced by women today and how to treat women with the respect that is their due.

1. Well, second marriage without divorce from first wife is a crime for which a FIR under section 494 IPC can be filed.

2. You can also lodge complaint under section 498A IPC along with case under PWDV Act seeking maintenance.

3. Talk to your husband in private and take him to some far away place to keep away from the influence of this lady. Talk to her family memebrs to make them understand in this way no valid marriage can be performed.

Collect all evidence related to affair  and planning of marriage 

As per hindu marriage act second marriage without divorcing first is null and void so do not proceed for divorce immediately

Complaint to nearest women cell of police ,you can file case of adultery ,

After his second marriage you can file case of bigamy

First warn him that he may face lots of trouble like huge amount of  alumni & maintenance 

Without giving divorce to you, he can't enter into a second marriage . Bigamy is a crime in India. At any time you derive knowledge of his second marriage with this delhD female, approach the Women helpline cell and Lodge a criminal complaint against yiuy husband

you can file divorce on the basis of adultery. you can also file complaint for bigamy if he marries her. 

Dear Client,

Without divorce second marriage is void, you can file criminal complain of bigamy against him.

Dear client.. give police complaint against that lady and her parents...and keep all evidence of their video calls.. phone calls.. chatting history ect.. and file a case against her .

A husband or a wife having extra marital affairs with a third person is not a crime as per supreme court's latest judgement.

However the spouse entering into a marriage with a third person during the subsistence of the previous marriage and the spouse living then it can be termed as an offence under section 494 IPC  called bigamy.

You can decide about your future and take wise decisions.