PHP 7 + MongoDB throwing Unsupported driver error

I have installed all the drivers properly . It is showing up in my php info as well. But when I do a "php --ini" mongodb driver is not listed there. I am using jessengers mongodb driver.

This is the error which I get in homestead terminal when I try to do a migrate.

[InvalidArgumentException] Unsupported driver [mongodb]

Anybody encountered this issue ? Any solution ?