1. If you take any action or go against employer, then your relations with your employer will definitely get spoiled.
2. You can approach the Labour Officer of the area having jurisdiction over your company and make a complaint to him for default in payment of salary by your employer.
3. You can engage an advocate who deals in service matters & send a legal notice to the employer directly.
4. Your employer can be fined by the authorities, if they file a case, he can even go to prison, but this happens in rarest of the rare cases.