Hi

MEC means 10+2 with Mathematics, Economics, and Commerce.

Yes, you can definitely become a collector,   it doesn't matter at all what subject /stream have you chosen in your 12th be it MEC or any other subjects you are be eligible , after completing your graduation and even for graduation you are free to pursue any course as there's no restriction for the same.

In order to become a collector,

you need to become an IAS officer and for that you need to be a graduate in any discipline  and at least 21 years old .

So, first of all after your 10+2 ,

• you need to do bachelor's degree in any discipline like BTech, ba, bsc, bcom or any other bachelor's course from  a recognised university. You can get complete eligibility criteria at https://competition.careers360.com/articles/upsc-ias-eligibility-criteria/amp

• After your graduation you need to appear for UPSC civil services examination which consists of three stages listed below :-

*   prelims exam   :- it is objective paper and is of qualifying nature , so you just  need to at least qualify it to be eligible for mains examination, the score /marks obtained by you in your prelims examination is not added up or used in your final merit. Your prelims exam consist of 2 papers: -

-) general studies  1

-) general studies II ( csat )

You get 2 hours for each paper

*   Mains exam. :-   it is descriptive /written examination . There are a total of 9 papers  which are listed below:-

-) compulsory indian language.

-) english

-) essay

-) general studies I

-) general studies II

-) general studies III

-) general studies IV

-) optional I

-) optional II

*   Interview :- After   qualifying mains, you have to go through interview round, and it is more of test of your personality rather than knowledge.

• If you managed to sail through all the three stages  then you can become an IAS officer depending on your rank in UPSC, your category etc

For detailed information check out :-

https://school.careers360.com/articles/how-to-become-an-ias-officer

Thank you