Since you are considering quitting your current job, I assume you are not very satisfied with it and want to explore more job opportunities with an MTech from IIT Hyderabad in mind. You either are looking for a better profile or a better package. Either way, you will get excellent opportunities after doing an MTech in CS from IIT Hyderabad.
Let’s consider both, staying at the current job and going to IIT Hyderabad for Masters. In the first case, you need to take into consideration the national CTC that you will have after two years at your current workplace. Even with an average 15%-30% hike, your CTC will be 9-12 LPA.
If you go for a Master's (CS) from IIT Hyderabad instead, you will have a plethora of companies visiting the campus for placements. The perks of joining MTech from IIT Hyderabad are
All in all, joining MTech CS from IIT Hyderabad offers excellent opportunities both in terms of research and placements. So it’s better to leave your job and go for a Master's from IIT Hyderabad.