Established in 1990, CNGSN & ASSOCIATES LLP is a leading Chartered Accountancy firm based in Chennai, India. With over 33 years of experience, we provide high-quality audit and consulting services to a diverse range of Indian and multinational clients.

Our team consists of 18 partners, led by our Chairman and Managing Partner, Dr. C. N. Gangadaran, who has over 45 years of experience in the profession. Supported by 75+ skilled professionals and 100+ staff with an overall experience of 30+ years in statutory audit, internal audit, taxation, management consulting, and more.

Recognized for our excellence, we were ranked 50th nationally and 7th in the South by Prime Academy in 2015. We operate across Chennai, Bangalore, Hyderabad, Vellore, Bhubaneshwar and Visakhapatnam with a network of associates in major Indian cities.

At CNGSN, continuous learning is key, with regular training sessions ensuring our team is always up-to-date with the latest industry developments.

Our Journey

Mar 1990Established

 D. Kalaialagan & Co. was established as a sole proprietorship by D. Kalaialagan.

May 1993Partnership

D. KALAIALAGAN & Co. transitioned into a partnership with the addition of Mr. R. Thirumalmarugan.

Oct 2002Evoluation

DK & CO evolved as (SNA) S.Neelakantan & Associates with addition of partners S. Neelakantan, B. Ramakrishnan, and V. Vivek Anand.

May 2003Addition of partners

Dr. C. N. Gangadaran and Mr. G. Chella Krishna joined as partners in SNA.

Jun 2003Rebranding

The firm S.Neelakantan & Associates was rebranded as CNGSN & Associates.

Dec 2011Geographical Expansion

The firm expanded with opening it’s new branch at Hyderabad, headed by Ms. N. Srilatha

Dec 2011Addition of partners

Mr. K. Parthasarathy and Mr. E. K. Srivatsan joined as partners at Chennai office.

Nov 2014Conversion

CNGSN & Associates was converted into CNGSN & Associates LLP.

Sep 2016Addition of partners

Mr. Chinnasamy Ganesan joined as a new partner in Chennai.

Nov & Dec 2020Addition of partners

Mr. Pranay J. Shah joined as new partners in Chennai.

Apr 2023Geographical Expansion

The firm expanded with the opening of new branch with 4 partners in Bangalore.

Apr 2023Addition of partners

Mr. Ashok Kumar Doddi, Mr. Sumith Rathi, Mr. Padi Siva Kumar, and Ms. G. Bhavana  Gopi joined as partners in Bangalore branch and Ms. Dinkle Parmer Joined as new partner in chennai office.

Sep 2023Addition of partners

Ms. Sonali Khatod M joined as a partner in Chennai Office

Apr 2024Geographical Expansion

The firm expanded its geographical presence with the opening of a new branches at Visakhapatnam, headed by Ms. Hemalatha K, and another branch at Bhubaneswar, headed by Mr. Narayan Choudhury.