Step 1: Understanding VDRL antigen testing.
The VDRL (Venereal Disease Research Laboratory) antigen test is used to detect antibodies for syphilis. It is tested and analyzed by a serologist and a chemical examiner, who specialize in detecting such infections.
Step 2: Analyzing the options.
(1) Drug inspector: Incorrect, drug inspectors do not typically handle the testing of VDRL antigens.
(2) Excise commissioner: Incorrect, excise commissioners are responsible for regulating alcohol and tobacco products, not for testing antigens.
(3) Serologist and chemical Examiner: Correct — Serologists and chemical examiners are involved in the analysis of biological specimens, including VDRL antigens.
(4) Drug Controller of India: Incorrect, the Drug Controller of India oversees drug regulations but is not directly involved in testing VDRL antigens.
Step 3: Conclusion.
The correct answer is (3) Serologist and chemical Examiner.