Mental harassment

I'm working in a private sector called think7 business systems private limited joined on April 2nd 2018, during the interview they told they pay as per the previous company salary only. At that time I wanted job so I didn't speak with the CEO regarding the salary. After 2 months of working I privately sent a message by pleasing the CEO to, if possible please atleast increase the salary to 2k to round off my salary since my salary is 28k. Then he called me privately and said prove yourself then I will increase. After two months i.e. last week he shouted in front of others like a speaker blasting our ears since I didn't get back to a customer's email. I thought that it's my fault and accepted his shouting on me. After three days i.e. yesterday he called to his room, he showed me a mail and asked me why you did this? My mistake is I kept the customer in cc in mail and told my colleague saying please look after this customer concern. So he started shouting at me like I felt like committing suicide after I came from his room. He was scolding in a rubbish words that no one can use on anybody. "Put your dick into his ass, I will fuck you" like these kinds of words he used on me. Also he told "Even you didn't join the organisation you asked for increment right?". So his intention is, if he scolds and put a blame on me I will feel like I don't deserve the increment, so to hide that he is making me feel like I did mistake. After coming from that room I cried a lot I don't even want to live, I thought of writing a letter that my CEO is the cause for my suicide and let me kill myself. But my friend compromised me and made me feel like why I want to die? Mistake is not mine, I just asked increment that too if it is possible for him, but if he don't want to increment, will he shout like this? I never forgive him, I never accept this even my daddy mummy also not scolded like this. So I want to take action on him so that he should feel like he did wrong, and he should not shout at any employees like this. Please I beg you please help me.