GST Tax Law Firm | GST Lawyer in Delhi NCR, Mumbai
Legum Attorney: Leading GST and Tax Litigation Firm in Delhi NCR and Mumbai
At Legum Attorney, we are recognized as one of the top tax litigation firms specializing in GST and VAT services across Delhi NCR and Mumbai, Gurgaon. Our expert team delivers tailored solutions to meet your GST litigation needs, ensuring compliance and favorable outcomes in complex tax matters.
Our practice focuses on GST litigation, tax dispute resolution, regulatory compliance, and constitutional remedies available under the GST regime.

GST Legal Advisory, Litigation & Representation
GST Advisory
We provide legal advice on complex GST issues arising from business transactions, contracts and tax positions.
Our GST advisory practice includes:
- Interpretation of CGST, SGST and IGST provisions
- Classification and rate disputes
- Valuation issues
- Place of supply
- Input Tax Credit
- Reverse Charge Mechanism (RCM)
- Taxability of transactions
- E-commerce and digital transactions
- GST implications of commercial arrangements
- Legal opinions on complex GST issues
Our objective is to provide legally sound advice that helps clients understand their GST exposure and available remedies.
GST Notices & Show Cause Notices
A GST notice or Show Cause Notice can result in substantial tax demands, interest, penalties and other consequences if not appropriately addressed.
We assist clients with:
- GST Show Cause Notices
- Demand notices
- Scrutiny proceedings
- Assessment proceedings
- Audit proceedings
- Penalty proceedings
- Allegations of tax evasion
- Classification and valuation disputes
- Input Tax Credit disputes
- Reply to notices and SCNs
- Personal hearings before GST authorities
We examine the allegations, statutory provisions, documents and evidence before preparing the appropriate legal response.
DGGI Investigation & GST Summons
GST investigations by the Directorate General of GST Intelligence (DGGI) may involve allegations of tax evasion, fake invoicing, wrongful Input Tax Credit and other serious offences.
We assist clients in matters involving:
- DGGI summons
- Summons under Section 70 of the CGST Act
- Recording of statements
- Search and seizure proceedings
- GST investigations
- Fake invoice allegations
- Wrongful ITC allegations
- Tax evasion investigations
- Enforcement proceedings
- Arrest-related proceedings
- GST prosecution matters
Legal assistance at the investigation stage can help ensure that the client’s factual and legal position is properly presented before the authorities.
Input Tax Credit (ITC) Disputes
Input Tax Credit is one of the most frequently contested areas under GST.
We handle disputes relating to:
- Denial of Input Tax Credit
- ITC reversal
- Supplier default
- GSTR-2A / GSTR-2B related disputes
- Blocked credit
- Transitional credit
- Electronic Credit Ledger restrictions
- Alleged wrongful availment of ITC
- ITC investigations
- Interest and penalty arising from ITC disputes
We assist taxpayers in defending legitimate ITC claims and challenging demands that are legally unsustainable.
GST Litigation & Dispute Resolution
We represent taxpayers in GST disputes before the appropriate statutory and judicial forums.
Our litigation practice includes:
- GST demand disputes
- Tax assessment proceedings
- Adjudication proceedings
- Penalty disputes
- Interest disputes
- Classification disputes
- Valuation disputes
- ITC disputes
- Refund disputes
- Registration-related disputes
- Recovery proceedings
- Enforcement-related matters
Our approach is focused on developing a strong factual and legal record at every stage of the proceedings.
GST Appeals & GSTAT
GST Appeals & GSTAT
An adverse GST order may be challenged through the statutory appellate mechanism within the prescribed limitation period.
We represent clients in:
- Appeals against Orders-in-Original
- Appeals against assessment orders
- GST demand appeals
- ITC appeals
- Penalty appeals
- Refund appeals
- Classification and valuation appeals
- Proceedings before the Appellate Authority
- Appeals and proceedings before GSTAT
- Stay and recovery-related matters
Our work includes preparation of grounds of appeal, legal submissions, case-law research, compilation of documents and representation during hearings.
GST Bail & Criminal Trial
Certain GST investigations can lead to arrest and prosecution proceedings. Such matters require an integrated understanding of GST law and criminal procedure.
We assist in appropriate cases involving:
- GST bail applications
- Anticipatory bail, where maintainable
- Regular bail
- Arrest-related proceedings
- GST prosecution
- Criminal complaints relating to GST offences
- Criminal trial proceedings
- Compounding proceedings
- Constitutional and procedural challenges
We represent clients through the relevant stages of criminal proceedings while addressing the underlying GST issues.
GST Refund Litigation
Refund disputes can have a significant impact on business cash flow.
We assist clients with:
- Export refunds
- Refunds relating to zero-rated supplies
- ITC refunds
- Inverted duty structure refunds
- Delayed refund claims
- Interest on delayed refunds
- Rejection of refund applications
- Appeals against refund rejection
- Appropriate writ remedies
GST Registration Cancellation & Restoration
Cancellation or suspension of GST registration can directly affect business operations.
We represent clients in:
- Cancellation proceedings
- Suspension of registration
- Revocation applications
- Restoration of GST registration
- Appeals against cancellation orders
- Challenges to registration-related actions
- Appropriate High Court proceedings
GST Litigation Before High Courts
In appropriate cases, constitutional remedies may be pursued where issues relating to jurisdiction, natural justice, procedural illegality or other substantial questions of law arise.
We handle appropriate GST writ proceedings before:
- Delhi High Court
- Bombay High Court
- Karnataka High Court
- Telangana High Court
- Other High Courts, subject to jurisdiction
Our GST litigation practice involves careful assessment of the statutory remedy, factual record and legal grounds before determining the appropriate course of action.


