I have 2 year of work experience, but I got 45% in my B.com. Is I'm eligible for MBA(FT) from Tier-1 institute/college?

There are three entrance tests which you can look at, as in, XAT , CMAT and MAT. You have got a good percentile in your CMAT. You can go to the website of AICTE and have a look at the list of B Schools which accept CMAT scores. MAT is held four times a year. XAT is the Xavier's Aptitude Test which

Hi, In order to pursue MBA you need to be graduate in any field with atleast 50% marks in graduation,plus you need to take various management entrance test like CAT,MAT,XAT etc. As per your profile I would suggest you to apply for improvement exam and prepare well so that you may score atleast 50%