What are the ways of making money in kolkata?

I assume you have no special skills like being a doctor, lawyer, or engineer. You are a normal college graduate with no special skill. What are the possible ways to make money in Kolkata? BPO jobs have no work-life balance with very low salaries, and if you are not specialized in bootlicking and lobbying, getting a promotion is very hard. I just want to know what you do for a living and what other available service options are. Please share your thoughts. As unemployment is increasing every year, this types of discussion will help lots of young people. Not everyone can effort b.tech, b.ed financially and Not everyone has the brilliance of being a doctor or crack a govt. job. What are the options for average person( medium talent and from poor family background) in this city?