Hi ,

So to check the answer key , you can use this link .

https://engineering.careers360.com/articles/mht-cet-answer-key

These are the steps to download the answer key .

1. Click here to go to official website: mahacet.org .
2. Login using ID and Password.
3. MHT CET 2019 Answer Key in PDF and Candidates' response sheet will be availabe.
4. Download and take a printout.

The last date to challenge the answer key was may 18 . Since the results are declared by now , probably the key was removed from the official website.  You can mail the respective authority,  or check the unofficial answer key released by Allen coaching academy if you still want the key .

Hope this was helpful.

For further queries please approach careers360.