Explanation:

Ofloxacin is in class of antibiotics called fluoroquinolones. It is used to treat certain infections including bronchitis, pneumonia and infections of skin, bladder, urinary tract, reproductive organs, and prostate (a male reproductive gland). It works by killing bacteria that cause infections.
It is a pharma product from China.
The duty was imposed for three years following recommendations of Directorate General of Anti- Dumping and Allied Duties (DGAD) to protect domestic producers from below-cost shipments.
In its probe DGAD had found that Ofloxacin exported to India from China was below its normal value, resulting in dumping. It had caused material injury to the domestic industry.