You have advanced more than 15 lakh to your husband for doing business. But he did not do well in business and lost all the money. You are also facing domestic violence and cruelty in the matrimonial home. Currently, you can claim a refund of money from your husband.
If your husband does not refund your money then you can claim his property in lian. You can hold his flat in the apartment and not give possession to your husband till the payment of 15 lakh rupees. All that money was your hard earned money and it was your personal property. your husband cannot claim right over your property therefore, he has to refund all the money. You can also find a civil suit for the recovery of money and carry on your possession over the property until the decree of the court.