Trusted Expertise in Taxation, GST & Financial Compliance
Suthar Thakkar & Patel (CASTP) is a Chartered Accountancy firm committed to delivering professional taxation, GST, audit, accounting, and compliance services to businesses, professionals, and growing enterprises. We bring precision, transparency, and practical insight to every engagement.
A Professional Firm Built on Trust, Accuracy & Transparency
Suthar Thakkar & Patel (CASTP) is more than a compliance firm, we are a strategic financial partner for businesses navigating the complexities of modern regulation. Our team combines deep technical expertise with practical business understanding to deliver reliable, results-driven financial and compliance support.
From taxation and GST to audit, bookkeeping, and financial consultancy, we serve as a single point of accountability for businesses seeking clarity, accuracy, and peace of mind in their financial operations.
Transparent
Clear, honest communication at every step of your engagement.
Timely
Deadlines met with precision — no delays, no last-minute surprises.
Practical
Actionable advice grounded in real business scenarios.
Reliable
Consistent, dependable support you can build your business on.
Business-Oriented
Solutions tailored to your commercial realities and growth goals.
Vision & Mission
Two principles guide everything we do, building lasting financial confidence and simplifying the path to compliance.
Building Financial Confidence for Businesses
We envision a future where every business, regardless of size, operates with complete financial clarity and regulatory confidence. CASTP aspires to be the most trusted name in chartered accountancy, enabling enterprises to grow sustainably and compliantly in an ever-evolving regulatory landscape.
- Empower businesses with financial clarity
- Be a trusted long-term compliance partner
- Drive growth through informed advisory
Simplifying Financial & Regulatory Processes
Our mission is to demystify complex financial and regulatory requirements for our clients, delivering solutions that are accurate, timely, and easy to act upon. We commit to maintaining the highest professional standards while providing accessible, practical guidance tailored to each client's unique circumstances.
- Deliver accurate, timely compliance solutions
- Maintain the highest professional standards
- Provide practical, accessible financial guidance
Comprehensive Financial & Compliance Services
From tax planning and GST advisory to statutory audit and business consultancy, CASTP offers end-to-end financial services designed to protect your business and support its growth trajectory.
GST & Indirect Tax Services
Comprehensive GST registration, filing, reconciliation, advisory, and litigation support to keep your indirect tax compliance seamless and error-free.
Income Tax Advisory & Filing
Strategic tax planning, return preparation, and advisory services for individuals, businesses, and corporates — minimising liability while ensuring full compliance.
Audit & Assurance
Independent statutory, internal, and tax audits conducted with rigour and objectivity to provide stakeholders with reliable assurance on financial reporting.
Accounting & Bookkeeping
Accurate, organised, and up-to-date financial records maintained with precision — providing the foundation for informed business decision-making.
Business Compliance Support
End-to-end support for statutory registrations, regulatory filings, and ongoing compliance obligations — so you stay focused on running your business.
Financial Consultancy
Advisory services covering financial structuring, cash flow management, profitability analysis, and strategic planning for sustainable business growth.
Regulatory & Statutory Compliance
Navigating complex regulatory frameworks with confidence — from Companies Act compliance to FEMA, SEBI, and other statutory obligations.
Business Advisory Services
Practical, commercially aware guidance on business structure, mergers, valuations, and growth strategy — delivered with a CA's precision and a business partner's perspective.
Professional Support Backed by Practical Understanding
What sets CASTP apart is not just technical expertise, it is the genuine commitment to understanding your business context and delivering solutions that create real, lasting value.
Client-Centric Approach
Every engagement begins with listening. We invest time in understanding your business, industry, and goals before delivering any recommendation. Your success is the measure of ours.
Technical Expertise
Our team holds deep, current knowledge across taxation, GST, audit, and financial compliance, staying ahead of regulatory changes so you never have to worry about falling behind.
Timely Execution
We understand that in business, timing is everything. Our structured processes and disciplined workflows ensure deliverables are completed accurately and on schedule, every time.
Transparent Communication
No jargon, no ambiguity. We communicate clearly and proactively, keeping you fully informed about your compliance status, obligations, and advisory outcomes at all times.
Practical Financial Guidance
Our advice is grounded in commercial reality. We bridge the gap between regulatory requirements and business practicality, helping you make confident, well-informed decisions.
Clients Served
Businesses, professionals, and enterprises across diverse industries
Years of Practice
Deep experience navigating India's evolving regulatory landscape
Core Service Areas
Comprehensive financial and compliance services under one roof
Compliance Focus
Unwavering commitment to accuracy, integrity, and timely delivery
Structured, Reliable & Business-Focused
Our engagement methodology is built around four clear stages — ensuring that every client receives consistent, high-quality service from the first conversation to ongoing support. This structured approach eliminates uncertainty and creates a foundation of trust from day one.
This four-stage process ensures no detail is overlooked, from initial discovery through to continuous, proactive compliance management. Clients experience a seamless, well-coordinated engagement from start to finish.
Supporting Businesses Across Diverse Industries
CASTP's expertise spans a broad range of industries and business types. Whether you are a manufacturer managing complex input tax credits, a startup navigating first-time compliance, or a seasoned professional seeking strategic tax planning, our team has the sector knowledge to serve you effectively.
Manufacturing
GST input credit management, cost accounting, and statutory compliance for manufacturing enterprises.
Trading & Distribution
Inventory accounting, GST compliance, and tax planning tailored for trading and distribution businesses.
Retail Businesses
End-to-end compliance, bookkeeping, and GST return management for retail operations of all sizes.
Service-Based Businesses
Tailored accounting, tax advisory, and professional tax compliance for service-oriented organisations.
Startups & Entrepreneurs
Incorporation support, financial structuring, and compliance foundations designed for early-stage businesses.
Professionals & Consultants
Personal tax planning, ITR filing, and professional compliance services for independent professionals.
The Values We Work By
At CASTP, our professional practice is anchored in a set of core values that govern every client relationship, every engagement, and every deliverable. These are not aspirational statements, they are the operating principles our team holds itself accountable to every single day.
Integrity Above All
We never compromise on professional ethics. Every recommendation, every filing, and every piece of advice is delivered with complete honesty and regulatory integrity.
Excellence in Execution
Good enough is never enough. We hold ourselves to the highest standards of accuracy and thoroughness in every task — no matter how routine or complex.
Client Confidentiality
Your financial information is treated with absolute discretion. We maintain strict confidentiality protocols that go beyond regulatory requirements because your trust is our most valuable asset.
Trusted by Businesses That Value Precision
Our clients choose CASTP not just for technical expertise, but for the clarity, reliability, and genuine partnership they experience throughout every engagement. Here is what some of them have to say.
"CASTP transformed the way we handle GST compliance. Their structured approach and proactive communication gave us complete confidence in our filings."
— Manufacturing Business Owner
"The team at CASTP is responsive, knowledgeable, and genuinely invested in our financial success. They feel like a true business partner, not just a service provider."
— Startup Founder
Looking for Reliable Tax & Compliance Support?
Partner with CASTP for professional taxation, GST, audit, accounting, and financial advisory services designed to support your business growth and ensure seamless compliance. Whether you are a growing enterprise, an established business, or an independent professional, our team is ready to assist.
Meet Our Visionary Partners
Our firm is built on the collective expertise and unwavering dedication of our founding partners. Each brings a unique specialisation and a shared commitment to client success and ethical practice.
CA Poonam Suthar
B.Com. FCA, DISA
Specialising in statutory & tax audits, IT governance (DISA), and corporate compliance. Poonam's expertise spans textile, automobile, pharmaceutical, and NGO sectors, ensuring robust internal controls and regulatory adherence.
CA Kailash Thakkar
B.Com. FCA
A seasoned expert in financial planning, management consultancy, and GST matters. Kailash advises clients in manufacturing, IT software, healthcare, and real estate, holding certifications in Bank Con-current Audit and AI for CAs.
Mehul Patel
B.Com. FCA
Based at our Mehsana branch, Mehul excels in audit, assurance, and taxation for pharmaceutical, real estate, and agricultural sectors. He also offers advisory for charitable trusts, NGOs, and educational institutions.
CA Dhaval Thakkar
B.Com. FCA
Dhaval brings extensive experience in statutory & tax audits, corporate advisory, and direct/indirect tax compliance. His expertise supports diverse industries including import/export, machinery, and pharmaceutical companies.
From Humble Beginnings to a Growing Legacy
Over seven years of growth, trust, and expanding expertise across Gujarat.
June 2018 — Founded as Suthar Thakkar & Co.
Partners: CA Poonam Suthar & CA Kailash Thakkar
Location: Sametsikhar Ni Pole, Mandvi Ni Pole, Manekchowk, Ahmedabad, Gujarat – 380001
Our journey began with two dedicated partners and a commitment to delivering trusted financial and compliance services.
February 2019 — Relocated to a Larger Office
Partners: CA Poonam Suthar & CA Kailash Thakkar
Location: A/205, Sumel Business Park 6, Nr Hanumanpura BRTS, Dudheshwar, Sahibaugh, Ahmedabad, Gujarat – 380004
Growing client demand led us to a more accessible and professional workspace.
June 2023 — New Partner & New Identity
New Partner: CA Mehul Patel
New Name: Suthar Thakkar & Patel
Head Office: 911, Solaris Business Hub, Nr Bhuyangdev Cross Road, Sola, Ahmedabad, Gujarat – 380063
A landmark year — we welcomed a new partner, expanded our expertise, and rebranded to reflect our growing team.
June 2023 — Mehsana Branch Office Opened
Branch Office: Shop No F/157, Square One Complex, Radhanpur Road, Mehsana, Gujarat – 384002
Extending our reach beyond Ahmedabad to serve businesses across North Gujarat.
August 2025 — Fourth Partner Joins
New Partner: CA Dhaval Thakkar
Second Ahmedabad Office: A/902, Money Plant High Street, S G Highway, Nr BSNL Tower, Jagatpur, Ahmedabad – 382470
With CA Dhaval Thakkar on board, CASTP strengthens its capabilities and opens a second Ahmedabad office to serve more clients across the city.
Suthar Thakkar & Patel & Co.
CASTP, Chartered Accountants
A professional CA firm committed to delivering trusted financial, taxation, and compliance services across India.
✦ Precision. Integrity. Growth.
Services
- GST & Indirect Tax
- Income Tax Advisory
- Audit & Assurance
- Accounting & Bookkeeping
- Business Compliance
- Financial Consultancy
Contact
📧 info@castp.in
📞 +91 94087 49358
📍 Ahmedabad, India
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