Our Company
Zexa Analytical Laboratories LLP is a nationally recognized, FDA-approved, and NABL-accredited laboratory (ISO/IEC 17025:2017) offering comprehensive analytical services to the pharmaceutical, cosmetics, food, water, ayurvedic, and environmental industries
Zexa Analytical Laboratories LLP is strategically located in Baddi, Himachal Pradesh, the pharmaceutical hub of India.
Infrastructure
Our state-of-the-art facility spans 6,000 sq. feet, featuring:
– Modular laboratory spaces
– Training cum conference hall
– Administrative offices
– Cafeteria
– Round-the-clock CCTV surveillance

Safety and Compliance
We prioritize safety and compliance:
– Health and safety measures adhere to Safety Guidelines
– Approved by HP Pollution Control Board as a non-polluting laboratory
– Online UPS Systems ensure uninterrupted power supply
– Split air-conditioning and air handling units maintain optimal laboratory conditions
Security
Our facility features:
– Round-the-clock surveillance through strategically placed video cameras
– Secure access control systems
Join us at our cutting-edge facility, designed to deliver exceptional analytical services.
Our Expertise
With state-of-the-art instrumentation and a team of experienced professionals, we provide:
– Contract testing and analytical outsourcing
– Method development, validation, and transfer
– Pharmaceutical equivalence, impurity profiling, and dissolution studies
– Stability testing, residual solvents analysis, and toxic element detection
– Pharmacopoeia analysis, ayurvedic testing, cosmetics analysis, and food testing
– Raw material, finished product, chemical, water, and microbiological testing
– Packaging material testing
Advanced Instrumentation
Our laboratory is equipped with:
– HPLCs (UV-Visible, RI, PDA, Fluorescence detectors)
– GCs (FID detector)
– GC-HS
– Bruker FTIR (ATR)
– AAS
– Dissolution testers
– UV-Visible Spectrophotometers
– Potentiometers
– KF Apparatus
– Refractive Index
– Melting Point
– Microbiological Lab

CEO Message
Under the visionary leadership and mentorship of Dr. R. A. Singh (Ph.D., M.Sc., AIC, CC), Zexa Analytical Laboratories LLP is revolutionizing the analytical testing landscape. With an illustrious career spanning over 40 years, Dr. Singh brings unparalleled expertise in analytical research and development, quality control, and cGMP/GLP regulatory compliance. He oversees the development and implementation of cutting-edge testing methodologies, ensuring the highest standards of quality and accuracy.
Dr. Singh’s has extensive experience in the pharmaceutical industry such as analytical chemistry, chromatography, spectroscopy, and mass spectrometry. His research experience and technical acumen have enabled him to develop and validate numerous analytical methods, supporting the development of pharmaceutical products from concept to commercialization.
Dr. Singh has the distinction of serving on several prestigious national-level scientific and advisory boards, including Bureau of Indian Standards (BIS); Indian Pharmacopeia Commission; Ayurveda Pharmacopoeia of India. He has also been a member of the Technical Committee of the National Accreditation Board for Testing and Calibration Laboratories (NABL, India). He has contributed to the up-gradation, development, and gap analysis for major private and central/State government analytical testing laboratories.
Additionally, Dr. Singh was an approved Person-in-Charge for instrumentation and microbiology, underscoring his expertise and credentials in these areas.
Prior to founding Zexa, Dr. Singh held key positions in esteemed organizations, including:
– As Director and Government Analyst at Regional Drug Testing Laboratory (RDTL), Chandigarh (Ministry of Health and Family Welfare, Government of India).
– Serves other private industries as Technical Director and Analytical Testing Expert at Arbro Pharmaceutical Private Limited, IDMA Laboratories etc.,
Dr. Singh’s leadership and expertise have been pivotal in shaping Zexa mission to deliver exceptional analytical testing services, fostering a culture of innovation, quality, and customer satisfaction. We are known for exceptional quality and rigorous testing standards, but it is our focus on the bigger picture that sets us apart. We look beyond test results and partner with you to achieve your long-term business goals — mitigating risk, being first to market, and succeeding with your customers.
Managing Partner
As Managing Partner at Zexa Analytical Laboratories LLP, Dr. Dharmendra Kumar (Ph.D., M.Sc.) plays a pivotal role in driving the company’s technical vision and strategic growth. With a strong background in analytical chemistry and a passion for innovation, Dr. Kumar oversees the development and implementation of cutting-edge testing methodologies, ensuring the highest standards of quality and accuracy.
Dr. Kumar’s expertise spans various aspects of analytical chemistry, encompasses his research experience and technical acumen have enabled him to develop and validate numerous analytical chemistry, chromatographic analytical test methods, supporting the development of pharmaceutical products from concept to commercialization.
Prior to Zexa, Dr. Kumar’s served as Technical Manager at ITC Labs, Panchkula and Manager at Abyss Pharmaceutical Pvt. Ltd., Delhi.
As a key member of the Zexa Labs leadership team, Dr. Kumar is committed to fostering a culture of innovation, collaboration, and customer-centricity. His technical expertise and business acumen are instrumental in driving the company’s growth and reputation as a trusted partner in analytical testing services.

Varun Rathi
Meet Our Chief Technical Officer & Quality Manager
Dr. Varun Rathi (Ph.D., M.Pharm.) spearheads Zexa Analytical Laboratories LLP’s technical vision and quality assurance initiatives as Chief Technical Officer (CTO) and Quality Manager. With 15 years of distinguished experience, Dr. Rathi leverages his expertise in quality management to drive excellence.
Technical Expertise:
– Robust quality systems and regulatory compliance
– Strategic quality planning and implementation
– Technical transfer and process optimization
– Auditing and inspection management
Dr. Rathi’s career spans esteemed pharmaceutical companies, including Abbott Healthcare, Reckitt Benckiser, Mankind Pharma, and Fresenius Kabi. He has worked in:
– Quality Control Laboratories: Ensuring compliance with regulatory standards and internal quality norms.
Why Choose Us
Choosing Zexa Analytical Laboratories LLP for your analytical testing needs and experience the confidence that comes with working with a leader in the industry. Together, we can ensure the quality and safety of pharmaceutical products for a healthier tomorrow.
We are known for exceptional quality and rigorous testing standards, but it is our focus on the bigger picture that sets us apart. We look beyond test results and partner with you to achieve your long-term business goals — mitigating risk, being first to market, and succeeding with your customers.
- Thought leaders and approachable experts: We give you direct access to industry authorities who understand your business and add value every step of the way.
- Customer-centric culture: We take the time to understand your vision. Your goals become our goals.
- Real-time project management tools and a dedicated team: We provide proactive information, keeping you informed and in control.
- Metric-driven testing processes: We’re our own toughest customer, holding ourselves to goals exceeding 99% for things that matter most to you, like quality, turnaround time, and testing accuracy.
- Global compliance expertise and support: We act as a trusted advisor, helping you navigate the ever-changing compliance landscape.
See how we can help you mitigate risk, be first to market, and succeed with your customers.
Safeguarding Global Health with every test we complete.
The laboratory provides analytical testing to Good Laboratory Practice (GLP) compliant requirements and is on the WHO list of Prequalified Quality Control Laboratories. The laboratory has ISO 17025 accrediation for specific methods and compliance for ISO 9001 certification and local FDA inspected.
we have the capacity to meet the ever-increasing demands of our clients and, our commitment, years of experience, high-tech laboratory facilities and scientific methods enable us to live up to our promise of quality.
Visit Us
Want to visit us? We welcome our clients on a daily basis, whether you are coming for an audit or just to observe testing. We are also happy to help in finding accommodations and directions to and from ZexaLabs. Contact us to schedule a tour or audit visit today.













