In practice since 1984 · Kolkata and Amritsar
Value is added when trust is combined with intellect.
Lalit Mohan Tyagi & Co. has been in continuous practice as a chartered accountancy firm for 42 years, with offices at Kolkata and Amritsar.
Lalit Mohan Tyagi & Co. is a chartered accountancy firm, Firm Registration Number 315114E, in continuous practice since 1984 from offices in Kolkata and Amritsar. The firm carries out statutory, concurrent and revenue audit, principally for banks, public sector undertakings and manufacturing companies, alongside taxation, corporate compliance, consulting and outsourcing engagements. Client identities are not published, and no fees are quoted on this site. Enquiries are handled directly by a partner, and prospective clients can read how an engagement runs before getting in touch.
- Established
- 1984
- Firm Reg. No.
- 315114E
- Constitution
- Partnership firm
- Offices
- Kolkata, Amritsar
- Partners
- 2
What does Lalit Mohan Tyagi and Co. do?
The firm carries out audit, taxation and advisory work across seven practice areas, summarised below. Each practice area page sets out the services within it in more detail, including how the firm approaches a first engagement.
Audit and assurance
Statutory and regulatory audit for banks, public sector undertakings and companies.
- Statutory audit
- Revenue audit
- Concurrent audit
- Internal audit
Taxation
Direct and indirect tax compliance, planning and representation.
- Corporate and personal taxation
- Tax planning
- Goods and services tax
- International tax services
Consulting
Finance, operations, risk and forensic engagements.
- Finance function advisory
- Operations
- Governance, risk and compliance
- People and change
Deals and valuation
Diligence, structuring and valuation for transactions.
- Financial due diligence
- Structuring services
- Post deal services
- Valuation consulting
Family business
Governance and succession for promoter-owned groups.
- Governance
- Business transition and succession
- Private wealth coordination
- Strategy and growth
Corporate compliance
Registrar filings, secretarial support and regulatory reporting.
- Registrar of Companies filings
- Corporate secretarial support
- Statutory registers
- Regulatory reporting
Accounting and outsourcing
Books, payroll and management reporting run from our offices.
- Bookkeeping
- Payroll
- Management information and reporting
- Finance process advisory
Businesses that need to check a specific threshold or due date can use the compliance tools rather than reading the notes below.
How does an engagement with the firm run?
Every engagement follows the same four stages, from the initial scope through to the final report. A partner leads the engagement throughout, rather than handing it off after the scoping stage.
Scoping
Scope, timelines and the engagement team are agreed in writing and recorded in an engagement letter before work begins.
Information request
An information request is raised in the client portal, listing the documents and records needed for the engagement.
Fieldwork
Fieldwork is carried out by a named engagement manager, who remains the primary point of contact throughout.
Reporting
Findings are reported and signed off, then filed to the client's permanent record.
Where can I read the firm's compliance notes and calendar?
GST annual return for FY 2025-26: what changed in the reconciliation
The revised GSTR-9C tables and the three reconciliation items that most commonly cause a mismatch notice.
04 August 2026Tax audit under section 44AB: applicability thresholds
Turnover limits, the cash-transaction test, and where presumptive taxation interacts with the audit requirement.
21 July 2026Concurrent audit of bank branches: a working checklist
The month-end review points that carry the highest weight in regulatory inspection.
see the compliance calendar for every upcoming due date, or read the recent notes above for the reasoning behind them.
Where are the firm's offices?
Amritsar · Branch office
2 Katra Sher Singh
Near City Telephone Exchange
Amritsar 143 001
Punjab
Which sectors has the firm worked in?
The firm has carried out engagements in banking, public sector undertakings, non banking financial companies, manufacturing, retail and education. See the sector engagement summary for the nature of work in each.
What does Lalit Mohan Tyagi & Co. do?
Lalit Mohan Tyagi & Co. is a chartered accountancy firm registered with the Institute of Chartered Accountants of India, offering audit, taxation, and advisory services.
The firm works with companies, banks, public sector undertakings, and other entities from offices in Kolkata and Amritsar, with a practice built mainly around statutory and concurrent audit.
Where is the firm located?
The firm's head office is in Kolkata, at Lords 511, 7/1 Lord Sinha Road. A branch office operates in Amritsar, Punjab.
Both offices handle audit, taxation, and advisory work, and enquiries can be sent to either office by email or through the contact page.
How long has the firm been in practice?
The firm was established in 1984 and has been in continuous practice as a chartered accountancy firm for 42 years.
Both partners are in full time practice, and every engagement is led by a partner from scoping through to the final report.
What sectors does the firm work in?
The firm has carried out audit and advisory engagements in banking and financial services, public sector undertakings, non banking financial companies, manufacturing, retail, and education.
Client names are not published under the guidelines the firm follows, and the sectors page describes the nature of engagements without naming any client.
How do I engage the firm?
An engagement begins with a written scope and timeline, recorded in an engagement letter before any work starts.
Enquiries can be sent through the contact page or by email, and a partner reviews every enquiry and responds directly rather than through an intermediary.