Qexclusive Online Shop Pvt Ltd - Did not release my salary

I was recruited as a sales executive by Mr Goutam Adhikary in Qexclusive Online Shop Pvt. Ltd. The date of joining is *th June and started my work from * June ****. The company didn't provide us with the identity card and brouchers. Even their shopping application was not available on play store but still, I do my job as per rules included in the job offer letter.
On *nd July I got a termination message via email. So they have to give me current months salary too. I asked them for proper termination letter and my salary but they didn't answer back. On telephonic conversation, Mr Goutam said to me that he will not release the salary from whom he got lost. In the first month of his company, he did not provide us with any setup or anything strong content to present companies products he is blaming us for their loss. It was not only my situation, he was release * employees half salary but hold others full salary.
I already warn him about legal action against him but still, he didn't reply and not receiving my call. So I'm kindly requesting you to help me with it and take serious action against that fraud person. Kindly make him release our salary.