I have bought a LAN Card iNTEX but when I plug in Mikrotik router (computer), Mikrkotik RouterOS does not recognize it.

I have the disk of drivers even and for LINUX.

How to install the iNTEX driver in MIkrotik.

Mikrotik needs to integrate them to RouterOS...

So the answer to you is, you can not install the drivers!
But try and write to support @ mikrotik.com and see if they will integrate them...