Wrongful termination on discriminatory level

I joined this company "My Jaunty" in late February. They are start so at that time no one was willing to join their company so i joined the company as a ecommerce site manager and also i was the one hiring people by taking interviews after 15th march slowly lots of people got hired so the person who is my boss did not have his own space where we people were working. He used that place also as a studio so there was no space where i can sit so 2,3 days i adjusted while sitting out side under the sun but after that i told him that i will not sit outside i need a chair and a space to work. all through this 25 days he mentally tortured to work sitting under sun but this friday the shoot was going on he called and said to go home at 1:30 i said why. So he said because there is no space inside for you and we don't need you either you go to your home or stand here outside other sun. You only have these two options i started crying and i said give me my money i want to go home he said i won't give go. Now he is not picking my call and replaying. My monthly salary is 20,000 i want him to pay my 20k plus compensation for mentally torturing and discriminating me because he knows that i don't belong to a rich family so he only said me to stand outside because he thought i am from a middle lower class so i will obey him but he cannot do like this to me and suddenly terminated just because of the space. I want to know what should i do now and how much should i ask for Thankyou