Yes , Bereavement and loss of face in society. The most police may call him an talk. It wont go till the court also. If the wedding cards are printed then it is a serious issue where he will have to pay fine and live few weeks-days in jail.
Like aparnuma said, Gauri can make his life miserable. Her marriage with him though illegal was made in a fraudulent way including bribing a gov official. After his divorce with Anandi, there is chance that that marriage is normalized and under the act of hindu marriage is considered fully legal and valid. Several conditions and clauses apply. The previous(jagya- anandi) marriage is child marriage and gauri will have full coveted power under hindu code bills proving that she is married earlier to that person which wa nullified and after reaching 18, they decided to start off. This is a stipulated clause where her marriage with jagya is legal and very much valid.
Like anandi's child marraige will be legal when they dont appeal after reach adult age. If she dosent file a case for 18 months after knowing that her husband married another woman then such petition will be under scrutiny to protect the woman and any child that is bore out of the second marriage. Under section 5 of hindu marriage act Divorce can be sought by husband or wife on certain grounds, including: continuous period of desertion for two or more years.
Either way gauri can screw his life if she wants to and that is the last thing i want to see in this soap. We have enough headaches with immature idiotic saachi.
In India, laws are more lineage to women,(to protect them from vile men few centuries ago). Some laws are really ridiculous like if a man is in illegal relationship with another mans wife, he gets severe punishment and the wife will walk away free. I still cant understand why that was??😕