Here’s a concise, practical list of highly regarded tax‑consulting firms and practices in India, grouped by type so you can pick what fits your needs (cross‑border corporate tax, GST/indirect tax, transfer pricing, litigation, or individual/personal tax).

Global firms (large corporate / cross‑border work)

• Deloitte India — full suite: corporate tax, transfer pricing, tax technology, controversy.
• PwC India — strong in tax litigation, M&A tax, indirect tax (GST) advisory.
• EY India — international tax, tax transformation and tax technology.
• KPMG India — transfer pricing, GST and compliance, tax risk management. Source: industry overviews and firm profiles. (inventiva.co.in)

Top Indian tax boutiques / law firms (high‑end advisory + dispute resolution)

• Dhruva Advisors — leading independent tax firm, highly ranked for corporate tax, transfer pricing and dispute work. (dhruvaadvisors.com)
• Lakshmikumaran & Sridharan — long‑standing specialist in tax litigation and advisory; regularly ranked in Band 1 lists. (chambers.com)
• Nishith Desai Associates — top tier for tax structuring, especially international tax and policy issues. (nishithdesai.com)
• AZB & Partners, Economic Laws Practice (ELP), Shardul Amarchand Mangaldas — large law firms with Band‑1 tax practices handling high‑stakes litigation and complex transactions. (chambers.com)
• DMD Advocates — recognised for tax practice and dispute work. (dmd.law)

Mid‑tier networks / specialist consultancies (cost‑effective for mid‑market)

• Grant Thornton Bharat, BDO India, RSM India, Nangia Andersen — good for mid‑market corporates, GST implementation, and compliance projects. (inventiva.co.in)

How to choose the right firm

• Match scope: Big Four for very large multinationals, cross‑border tax planning, tax tech; boutiques/law firms for litigation, bespoke structuring and government engagement; mid‑tier for SMEs and implementation/GST projects.
• Check recent experience in your industry, published rankings (Chambers, ITR, Legal 500), and partner biographies.
• Ask about: relevant case studies, team seniority (partner involvement), timelines, fee model (fixed vs hourly vs success fee), and conflicts of interest. Key sources for rankings and firm credentials: Chambers/Legal 500/ITR and firm websites. (chambers.com)

Typical fees and engagement

• Large firms/boutiques: retainers or hourly rates (senior partners premium) — expect higher fees but deeper teams and litigation capability.
• Mid‑tier/specialist: competitive, often project‑based or fixed fees for GST implementation, transfer‑pricing documentation, routine compliance.

If you like, I can:

• Shortlist 3–5 firms best suited to your specific need (e.g., international M&A tax, GST compliance for an Indian SME, personal NRI tax filings).
• Provide recent contact/office details and sample engagement questions to ask each firm.

Which service are you looking for (corporate cross‑border, GST/indirect tax, transfer pricing, tax litigation, or personal/NRI tax)? I can tailor a shortlist and next steps.