Hello

First of all engineering branch selection depends on your interest. Mechanical engineering is all about design, construction and use of machines . After doing mechanical engineering you can go into Automobile Design & production, Aerospace companies, Petroleum, oil & gas EPC (Engineering, procurement & construction) companies, Pharmaceutical companies for maintenance of boilers and assembly line , HVAC (Heat ventilation and air-conditioning) companies, energy resources etc .on the other hand COMPUTER SCIENCE ENGINEERING deals with testing, programming making web browsers, apps, websites using python language, building softwares for design and other purposes and also CSE deals in hardware & networking. So if you are ready to work on computers for about 8 to 12 hours or more a day building programs then go for CSE, honestly its very boring job but the salary in CS companies is higher as compared to other branches. Also now a day there are so many mechanical engineers that getting a job is a bit tough because the competition is very high and starting salary in mechanical companies is very low unless you are from a top university / college like IITs or NITs or some foreign university. Dont copy anyone and dont do what others suggest you just go in the field in which you are good at because now a day competition is very very high you need to be the perfect in your area because best wont work in todays time . Dont go with the heart, go with the brain because you heart is meant to pump the blood not to take decisions first analyse your skills and then go, remember you know better about you than any other person do .

I hope it will help you
Good luck....