Khandelwal Laboratories Pvt. Ltd. which is also known as (KLab) is an Indian multinational pharmaceutical company with its headquarters in Mumbai, Maharashtra, India. The company is promoted by Sanjeev Khandelwal and was founded in the year 1945. Khandelwal Laboratories Pvt. Ltd. was incorporated on the 27th of September in the year 1945. Since the time of its inception, the company has been operating its three manufacturing plants which cater to the therapy area of oncology and deal with the production of tablets as well as injectable products. These WHO-GMP approved plants are located in Thane, Rudrapur and Dadra. The company is involved in the manufacturing, distributing, marketing and research and development of various medicinal formulations, The Novel Drug Delivery Systems, niche Active Pharmaceutical Ingredients and Chiral Intermediates. Khandelwal Laboratories Pvt. Ltd. is reputed in the markets for its products in the therapeutic area of oncology and has devoted its Thane plant for the development of relevant formulations in the same. Sanjeev Khandelwal has also been featured in the list of investors for the company called Epigeneres Biotech which is based in Mumbai and has created an early-detection technology in collaboration with Tzar Labs for the diagnosis of the much dreaded disease of cancer. Tzar Labs, situated in Singapore, has only one licensee in India, and that is Epigeneres Biotech.

The company specializes in the therapy areas of oncology, antibiotics, anti-microbial, anti-spasmodic, muscle relaxant, anti-diabetics, anti-hypertensive, topical anti-bacterial, anthelmintic, cough and cold preparations, antioxidant, calcium supplements, spasm management, gynecology, ENT, orthopedic, pediatric, anti-ulcerant, vitamin supplement, respiratory disorders and tonics.

Khandelwal Laboratories Pvt. Ltd. has its manufacturing facilities located in India at Thane, Rudrapur and Dadra. The company also manufactures on contract basis for a number of multinational pharmaceutical companies such as Mankind, Cipla, Emcure, Zydus Cadila, Glenmark and others. All facilities of the company work according to international standards and have received approval from major global regulatory bodies. The company has an international presence in the areas of South-East Asia, Asia Pacific, Africa, Central America and the Caribbean Islands through its exports.

Some of the top products of the company are CEFOCLOX-XL, RAB-D, ROBINAXOL-D, EXIPLON, CLARENCE, SPASMONORM, CEFSAFE, OFLA PLUS, AZINIX, CEFOCLOX, GLICLAZ-M, ROBI-D, XOFEX, VERMISOL, XALIPAT, ROBINAXOL, CEFSAFE-CV, OFLA-OZ, RAB, KANSURE, DICALCIIPLEX, ACEKAY SERA, GEMPOWER, BORTEMIB, SILVERON, DOXORUBIN, ROBINAX, GLIMCHEK-M, RITOX, CEFIJET, DICALCIIPLEX-N, AVAPAR, MAMOFEN, AMOXIVAN, GENLEVO, GEFTIN, OFLA, XOLNIC, XOFEX-XL, RIBOREA, PEMXCEL, MONOXIL-LC, TEMOZOL, SPASMONORM M, ROBIFLAM, RAB-SF, XIBRA, WOMAZOL, EPICHLOR and PLATINEX.