Zenotech Laboratories Limited manufactures and markets pharmaceutical specialty generic injectables and biotechnology products, primarily in oncology, anesthesiology, and related therapeutic areas; its core offerings include oncology injectables, general injectables, parenteral depot formulations, ophthalmic products, oncology oral formulations, granulocyte-colony stimulating factors, granulocyte-macrophage colony-stimulating factors, and contract manufacturing services for these categories. The company, founded in 1989 and headquartered in Hyderabad, Telangana, India, operates as a subsidiary of Sun Pharmaceutical Industries Limited, which holds a majority stake following acquisitions including an increase to 57.56% in 2017 via rights issue and a further 11.28% purchase from Daiichi Sankyo in 2022, elevating ownership to 68.84%. Zenotech focuses on the Indian market with niche biotech capabilities, leasing facilities and equipment while reporting recent financial performance with sales growth to Rs 38.98 crore for the year ended March 2025 amid fluctuating quarterly profits.