Our People

Driven by expertise. Defined by integrity. Delivered through people.

At N S K A AND CO LLP, our strength lies in the people behind every engagement. We believe that technical excellence and practical thinking must go hand in hand, and this philosophy shapes how our team approaches every mandate. Continuous learning is encouraged at all levels. Our professionals stay abreast of evolving regulations, industry developments, and best practices. We maintain a work culture grounded in integrity, accountability, and a shared commitment to client success. We invest in our people through mentorship, training, and exposure to diverse and varied assignments, because a well-developed team delivers better outcomes. Across our Chennai and Trichy offices, we function as one cohesive unit, aligned in purpose and consistent in delivery.

Leadership Team

R KALIYAPERUMAL

Senior & Founding Partner

As Senior and Founder Partner of N S K A AND CO LLP, Mr.Kaliyaperumal leads the firm's Audit, Direct and Indirect Taxation, Corporate structuring & regulatory sectors and emerging areas of practice in Trichy. With a career spanning over three decades, his expertise and vision form the cornerstone of the firm's enduring reputation. Passionate about exploring emerging areas, he consistently keeps the firm ahead of industry developments and regulatory changes.

His vision and steadfast guidance remain a driving force behind the growth and reputation of N S K A AND CO LLP.

AR NAGAPPAN

Senior & Founding Partner

As Senior and Founding Partner, he brings over three decades of distinguished expertise to N S K A AND CO LLP. His practice spans Audit, Direct Taxation, GST, Litigation & Arbitration, and advisory across diverse sectors.

During India's historic GST rollout, he authored a widely referenced book, reflecting his commitment to clarity and knowledge‑sharing. As the firm's driving force, his vision and guidance continue to inspire colleagues and clients, anchoring a legacy of excellence and trust.

N SARUMATHY

Partner

Partner of N S K A AND CO LLP, Sarumathy handles Audit, Indirect taxation and Regulatory practice with over a decade of experience. Known for her calm, execution-focused approach, delivering consistent turnaround and dependable outcomes across sectors including manufacturing, retail, and emerging enterprises.

She holds a Diploma in Information Systems Audit (DISA) equipping her with expertise in systems controls, IT audits, and technology-driven compliance frameworks.

Sarumathy has worked with Vedanta Sterlite Copper, gaining hands-on exposure to financial operations, commercial negotiations, and strategic reporting across complex industrial environments. She also mentored CA aspirants, through structured classes, imparting technical depth with clarity and precision.

ARUN SK

Partner

Arun SK, partner of N S K A AND CO LLP, has over 8+ years of experience spanning across Direct and International Taxation across advisory, compliance, litigation, and tax due diligence.

He has closely dealt with tax authorities and has represented clients before various forums, ensuring strategic alignment and effective resolution of disputes.

His professional journey spans listed company, global consulting at BDO India LLP, and multinational exposure at Shell Markets India Pvt Ltd — equipping him with a well-rounded perspective across corporate, consulting, and entrepreneurial domains.

Beyond technical expertise, Arun plays a pivotal role in shaping the firm's strategic direction.