India does not follow latest WHO guidelines on HIV testing:
In 2013, the Human Immunodeficiency Virus (HIV) testing guidelines released by the World Health Organisation (WHO) said that patients undergoing Anti-retroviral treatment (ART) must undergo two important tests- viral load and CD4 count test. While the viral load test counts the numbers of HIV virus particles in the blood, the CD4 cell count test counts the numbers of T cells which provide immunity against infections.

According to doctors, the treatment of patients in India undergoing first line ART at National Aids Control Organsation (NACO) supported centres continues to be monitored, only on the basis of the CD4 test count. Doctors said that the CD4 test by itself is an unreliable indicator of measuring the success or failure of ART....