Hello,

See, as far as the eligibility criteria goes as you have completed your graduation you're eligible to appear for the same, the minimum age has to be 21 years as on 1st August of the appearing year, and the maximum is 32 years, however relaxation in terms of age is provided to reserved categories, if you fulfill the above mentioned criteria you are eligible to appear for CSE 2022, however you will be required to qualify prelims to be eligible for Mains, it's entirely your call to leave your MTech or not, definitely the preparation for UPSC is difficult as the syllabus is extensive, and to add to it you're pursuing MTech which itself has different demands of post graduate study, nevertheless you also need to think of in terms of monetarily investment that happened for your study, I would say think about your priority, what exactly is your aspirations in true sense, and follow the same, you can also appear for UPSC after 2 years of study, I would say if you're not 100% confident about UPSC being your only path, and you'll focus on this only, don't leave your studies in the middle, as UPSC tends to be a lot more unpredictable, hence it's good to have a back up plan also, after Mtech your working opportunities too will increase a lot, and there will be various routes which you can opt for, hence think about all these things clearly and then only decide what exactly do you want to do.