Hi everyone, I received ITA in last draw and i am in process of completing my profile.
???
You cannot receive an ITA before you complete and submit a profile. Do you mean you are in the process of completing your eAPR, your application? I will assume you meant application - the answers are different if you mean application vs profile.
Currently I am working in canada and have shown my full time job as an assistant manager on which the CEC application is based. Moreover, I am also doing a part time job. Do I have to mention about my part time job? Or its ok not to mentioned that job ?
If you are completing your background declaration, then you must show EVERYTHING. (In contrast, on the profile, you only need to show the qualifying work experience or experience for which you earned points).
rezafc raises an important point, tho, were you authorized to do the part-time job? If you were on an open work permit (e.g. PGWP), then yes, you were authorized, and no worries. But you haven't told us what kind of work permit you have.