The registration window was open on 8th-Dec 2017 and the last date to apply is 13th-May-2018 so you can apply for the same as still you have time to apply.

Also, to check the eligibility and fee structure for M.Com in Christ University you can go through the below link -

https://christuniversity.in/apply-online#apply_now

https://christuniversity.in/php/eligibility.php?id=154

https://christuniversity.in/php/fee.php?id=154

Good Luck!!!