Verified Industry Letters of Appreciation

Client Letters of Appreciation & Case Reviews

Pharmaceutical manufacturers, API producers, and global quality leaders rely on Doctors’ Analytical Laboratories Pvt. Ltd. (DALPL) for time-critical regulatory submissions, trace-level impurity investigations, and routine analytical testing. Explore the full text and verified signed letters of appreciation from our partners below.

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Time-Critical Execution

Proven track record meeting strict regulatory deficiency windows and international sample logistics timelines.

Validated Sensitivity & Rigor

Submission-ready LC-MS/MS, NDSRI, and method validation packages backed by ISO/IEC 17025:2017 accreditation.

Cross-Timezone Responsiveness

Proactive stage-by-stage updates and same-day technical clarifications for domestic and international teams.

NDSRI Testing & LC-MS/MS DocuSign Verified Endorsement

TAPI (Teva Active Pharmaceutical Ingredients)

Assia Chemical Industries Ltd. • Tel Aviv, Israel

Partner Organization TAPI (Technology & API Services / Assia Chemical Industries Ltd., Israel)
Signatory Alex Aliluiko, Director of Quality, TPO & C(D)MO
Relevant Service / Capability NDSRI Testing, LC-MS/MS, Regulatory Deficiency Response
Envelope Verification ID 16F6E2ED-29BD-88A3-80EB-9022920A2310

To: Mr. Ashay Mehta, Doctors’ Analytical Laboratories

Subject: Letter of Appreciation

“When we needed NDSRI testing in TAPI API product to support a regulatory deficiency letter response, our window was tight, 3 month, considering international logistics for API samples import to India. Doctors’ Analytical Laboratories committed to that timeline and met it. They delivered validated LC-MS/MS data at the sensitivity our submission required, with complete documentation ready for regulatory review.

What stood out was the communication. Their team kept us updated at each stage, raised technical questions early, and turned around clarifications within a day. For a partner working across time zones, that responsiveness made a real difference.

We would not hesitate to rely on DALPL again for time-critical analytical work.”

Alex Aliluiko

Director of Quality, TPO & C(D)MO

TAPI (Assia Chemical Industries Ltd.) — 124 Dvora HaNevi’a St., Tel Aviv 6944020, Israel

Tight Turnaround (3-Month Deadline) Rapid Cross-Timezone Communication Flawless Regulatory Submission
Pharma Division Support & Method Rigor Verified Signed Letter

Kaygee Laboratories Pvt. Ltd.

Pharmaceutical Manufacturing & Formulation Partner • Bhopal / Mumbai, India

Partner Organization Kaygee Laboratories Private Limited
Signatory T. S. Maran, Site Head
Relevant Service / Capability Pharma Division Support, Analytical Project Execution, Method Rigor & Compliance
Registered Locations Mandideep, Bhopal & Andheri (West), Mumbai

To: Mr. Ashay Mehta & Team, Doctors’ Analytical Laboratories (Pharma Division)

Subject: Letter of Appreciation for Outstanding Analytical Support & Partnership

“Dear Team at Doctors’ Analytical Laboratories,

I am writing this letter on behalf of Kaygee Laboratories Pvt Ltd, to express our sincere appreciation for the exceptional analytical services you have provided for our recent projects executed in collaboration with Doctors’ Analytical Laboratories (Pharma Division).

In the pharmaceutical industry, success relies heavily on partnering with laboratories that share our commitment to quality, efficiency, and scientific rigor. Throughout our engagement, your team has consistently exceeded our expectations in several key areas:

  • Comprehensive Understanding of Project Scope: Your team demonstrated an impressive grasp of our complex project requirements right from the start. You seamlessly aligned with our objectives, ensuring that all analytical parameters were perfectly tailored to our project goals.
  • Rapid Turn around Times (TAT): We are incredibly grateful for your agility and responsiveness. Your ability to deliver prompt results without compromising on quality has significantly accelerated our project timelines.
  • Uncompromising Data Precision: The accuracy and reliability of your analytical data have been exemplary. Having absolute confidence in your findings allowed our team to make critical decisions swiftly and maintain the highest standards of compliance.

Your technical expertise and customer-centric approach have made a tangible, positive impact on our testing pipeline. It is rare to find a partner that balances speed and precision so flawlessly. We look forward to continuing our successful collaboration on future endeavors.”

T. S. Maran

Site Head

Kaygee Laboratories Pvt. Ltd. — Mandideep, Bhopal & Andheri (West), Mumbai

Agile Turnaround Times (TAT) Data Precision Scientific Rigor

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