B2B Software Consulting in Bangalore
ERPStack is remote-first and builds for Bangalore's captive GCC estate along the Outer Ring Road, Whitefield and Electronic City, where the ledger of record already sits in a parent's SAP S/4HANA abroad. We engineer the custom ERP satellite that posts into it, files SOFTEX inside 30 days, and keeps CERT-In-grade logs inside AWS ap-south-1.
Quick Answer
In short: a Bangalore GCC rarely buys a first ERP; it runs a satellite that has to post into the parent's SAP S/4HANA ledger. ERPStack builds that satellite for the DPDP Act, CERT-In's six-hour incident reporting and SOFTEX export-of-services billing, on PostgreSQL in AWS ap-south-1 about 14 ms away, with the source code yours.
Regional Compliance
- Digital Personal Data Protection Act, 2023 (No. 22 of 2023)
- CERT-In Directions of 28 April 2022, s.70B(6), IT Act 2000
- SOFTEX filed at STPI within 30 days of invoice (FED Master Direction 16/2015-16)
- Export realisation and repatriation within 9 months, tracked in EDPMS
- Karnataka professional tax: ₹200/month above ₹25,000, ₹300 in February
- Auditable against SOC 2 and ISO 27001 for the parent's group audit
Security & Compliance Architecture
Three regimes hit a Bangalore GCC at once and none of them agrees with the others: the Digital Personal Data Protection Act, 2023, the CERT-In directions, and the parent’s own GDPR exposure. The Digital Personal Data Protection Rules, 2025 — G.S.R. 846(E) of 13 November 2025 — set the clock: sections 3 to 17 of the Act and Rules 3 and 5 to 16 bind from 13 May 2027. For a custom ERP each one is a PostgreSQL schema decision before it is a policy document, and 13 May 2027 is the delivery date.
The Bangalore GCC is the processor, not the fiduciary
Section 2(k) of the Digital Personal Data Protection Act, 2023 makes a Bangalore centre handling its parent’s records a Data Processor; the parent stays the Data Fiduciary. Section 8(7)(b) obliges that fiduciary to cause its processor to erase on consent withdrawal — executable only if the Bangalore ERP exposes a real erase API rather than a soft-delete flag. We ship a cascading purge across PostgreSQL, Redis and S3 that returns a signed completion record.CERT-In: 6 hours to report, 180 days of logs, inside India
The CERT-In directions of 28 April 2022, under sub-section (6) of section 70B of the Information Technology Act, 2000, give a Bangalore company 6 hours to report a listed incident and require logs of all ICT systems kept for a rolling 180 days within Indian jurisdiction. A us-east-1 log sink fails that outright. We stream OpenTelemetry Observability spans and the ERP Immutable Audit Trail into AWS ap-south-1 under object lock, clock-synced to NIC or NPL servers as the same directions require.₹250 crore is what one missing control costs
The Schedule to the Act caps the penalty at ₹250 crore for failing to take reasonable security safeguards under section 8(5), ₹200 crore for not intimating the Data Protection Board under section 8(6), and ₹150 crore against a Significant Data Fiduciary under section 10. In a Bangalore ERP that turns RBAC, column encryption and PostgreSQL row-level security into schema constraints instead of proposal line items.Evidence the parent’s auditor accepts
ERPStack holds no certification and claims none; what we build in Bangalore is auditable against SOC 2 and ISO 27001 because the evidence is emitted by the system, not assembled the week before fieldwork. GitHub Actions fails a Bangalore deploy on a Semgrep SAST finding, Vitest and Playwright evidence rides the same run, Sentry carries the release marker, and every privileged mutation lands in an append-only PostgreSQL table the group auditor queries directly.
Engineering Blueprint
Bangalore rarely buys a first ERP. The buyer is a captive global capability centre off the Outer Ring Road — a 17 km corridor carrying roughly 60 million sq ft of office space — or in Electronic City, and its ledger of record already sits in a parent’s SAP S/4HANA, often the same template SAP Labs India maintains from its Bengaluru campus. Karnataka’s Global Capability Centre Policy 2024-2029 targets 1,000 GCCs and US$50 billion of output by 2029, so this buyer is multiplying. ERPStack is remote-first: we build the custom ERP satellite Bangalore runs on, in Next.js and PostgreSQL, and reconcile it into that parent ledger.
A Bangalore subledger, never a second ledger
A Bangalore GCC that opens a second general ledger fails the parent’s group audit. We model the ERP as an append-only subledger in PostgreSQL: every event writes a balanced pair of rows, a mapping table binds each Bangalore cost centre to the parent’s GL account, and a Node.js worker written in TypeScript posts summarised journals into SAP S/4HANA over OData. Idempotency in API Design does the real work — one external document key behind a unique index, so a retried batch cannot double-post — while a period-close flag in the Drizzle ORM schema rejects backdated writes once the parent shuts the month.
// Drizzle ORM — idempotent journal hand-off to the parent ledger
export const glPostings = pgTable('gl_postings', {
externalKey: varchar('external_key', { length: 64 }).notNull().unique(),
parentGlAccount: varchar('parent_gl_account', { length: 10 }).notNull(),
costCentre: varchar('cost_centre', { length: 12 }).notNull(),
amountPaise: bigint('amount_paise', { mode: 'bigint' }).notNull(),
});Billing the parent is an export, not a sale
When a Bangalore centre invoices its own parent, that is an export of services, and the clocks start immediately. RBI’s Master Direction on Export of Goods and Services requires the SOFTEX declaration to reach the designated official at STPI — whose Bengaluru centre sits in Electronic City Phase-1 — within 30 days of the invoice, allows a bulk statement provided it covers every invoice including those under US$25,000, and requires full realisation within nine months of the date of export, tracked by your AD bank in EDPMS. Bangalore finance teams keep the invoice, the IRN, the SOFTEX copy and the realisation in four disconnected systems, so every FEMA query becomes archaeology. ERPStack keeps one document lineage in Postgres, exposed over a REST API with RBAC per artefact and a 30-day timer on the row itself.
Bangalore has no AWS Region — design around it
AWS runs two Regions in the India geography: ap-south-1, Asia Pacific (Mumbai), live since 27 June 2016, and ap-south-2, Asia Pacific (Hyderabad), since 21 November 2022 — 3 Availability Zones each, neither of them in Bangalore. We default Bangalore workloads to ap-south-1, which every AWS account already has enabled, and treat ap-south-2 as an opt-in Region that Terraform must switch on before a single VPC exists. Bangalore does get a Direct Connect on-ramp at NetMagic DC2 and 4 CloudFront edge locations, and measured Mumbai–Bangalore round-trip sits near 14 ms, so the write path stays in ap-south-1 while Vercel’s bom1 region and a Redis read-through cache serve Bangalore reads.
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Frequently Asked Questions
Usually yes, as a satellite rather than a replacement. A Bangalore GCC gets a thin slice of the parent's SAP S/4HANA — GL, AP and HR — while engineering operations, lab data, vendor SLAs and shift rosters stay in spreadsheets. ERPStack builds that layer in Next.js, TypeScript and PostgreSQL and posts summarised journals back, so the parent's SAP ledger stays authoritative.
In ap-south-1, Asia Pacific (Mumbai). AWS runs only two Regions in India — ap-south-1 and ap-south-2 in Hyderabad — and neither is in Bangalore. Measured Mumbai to Bangalore round-trip is near 14 ms, so the write path stays in ap-south-1, Vercel's bom1 region and 4 CloudFront edge locations serve Bangalore reads, and NetMagic DC2 provides Direct Connect.
Both, in that order. TallyPrime — built in Bangalore since 1986 and used by more than 2.5 million businesses — stays the statutory book for the Indian entity, and Release 7.1 already sends invoices to the Invoice Registration Portal itself. The custom ERP writes to Tally for statutory filing and posts a summarised journal into the parent's SAP S/4HANA.
Yes, and the deadline is the design driver. RBI's Master Direction on Export of Goods and Services requires the SOFTEX declaration to reach the designated official at STPI within 30 days of the invoice, and full realisation within nine months of export. A Bangalore ERP should therefore raise the invoice, start a 30-day timer and hold the STPI-certified copy on the same PostgreSQL row.
A February surprise. Under the Karnataka Tax on Professions, Trades, Callings and Employments Act, 1976, a Bangalore salary below ₹25,000 a month pays nil professional tax and ₹25,000 or above pays ₹200 a month — except ₹300 in February, a split effective 1 April 2025. India's four labour codes came into force on 21 November 2025, so a Bangalore payroll engine inside the ERP has to version both rule sets by effective date in PostgreSQL.
Almost always a Data Processor. Section 2(k) of the Digital Personal Data Protection Act, 2023 defines that as anyone processing personal data on behalf of a Data Fiduciary — exactly what a Bangalore capability centre does with its parent's records. The clause that reaches your code is section 8(7)(b): the fiduciary must cause its processor to erase on consent withdrawal, so the Bangalore ERP needs a real erase API.
No, and this is where India diverges from the EU. Section 16(1) lets the Central Government restrict transfers only to countries it notifies — a blacklist, not GDPR's adequacy whitelist. Section 16(2) preserves stricter Indian rules, which is how RBI and SEBI localisation survives. In a Bangalore ERP we make the destination country a column in the multi-tenant Drizzle ORM schema.
Not the logs. The CERT-In directions of 28 April 2022 require logs of all ICT systems kept for a rolling 180 days within Indian jurisdiction, so a Bangalore entity shipping everything to us-east-1 has a gap on day one. We run the ERP in AWS ap-south-1, hold the audit trail there under object lock, and replicate only a redacted Postgres read replica.
Build now, but integrate through a contract, not a table. SAP ends mainstream maintenance for SAP Business Suite 7 on 31 December 2027, with extended maintenance to 31 December 2030 at a two-point premium, while SAP S/4HANA is committed to 2040. A Bangalore satellite talking to a versioned journal API survives that cutover; one reading ECC tables is rewritten twice.
₹250 crore. The Schedule to the Digital Personal Data Protection Act, 2023 sets that ceiling for failing to take reasonable security safeguards under section 8(5). Missing the section 8(6) intimation to the Data Protection Board and each affected person reaches ₹200 crore, Significant Data Fiduciary breaches under section 10 reach ₹150 crore, any other breach ₹50 crore. In a Bangalore ERP that makes RBAC and PostgreSQL row-level security schema constraints.
Three things a generic ERP treats as afterthoughts. EDA licence entitlement tracking, because a Software License Audit at a Bangalore design house turns on token-hours per project, not named seats. Bill of Materials (BOM) Management with revision-level effectivity, so a tape-out is reproducible. And per-project cost capture precise enough for the parent's transfer-pricing file. ERPStack models all three in PostgreSQL behind an event-driven API.