You can get it done from a standardised andrology laboratory attached to dedicated fertility/andrology clinic or a standardised laboratory with andrology facilities.
You will get the most reliable test from NABL (National Accreditation Board for Testing and Calibration Laboratories) laboratories.
It is recommended to choose laboratories which provide detailed analysis of macroscopic and microscopic characteristics of your semen rather than laboratories which rely on quicker, cheaper and unstandardised reporting methods
