Mumbai, Jan. 16 -- After Rajesh Tambe completed his undergraduate degree in arts from Mumbai University, he could only find work as a computer hardware repairman in a private firm. Unhappy with the job, which was time-intensive and left him with no opportunity to pursue his dream of joining the civil services, he quit in 2015 and joined the Brihanmumbai Municipal Corporation. He was given a job as a sanitation worker. Everyday, he would start his work at 7.30am and spent eight hours cleaning the drains alongside the arterial roads in Mumbai's Chembur suburb. In the evening, he would go back to his home and study for the state public service exam....