Legacy ERP upgrade · Migration included

Move off your legacy ERP without retyping a single ledger.

Varisya moves Indian businesses off legacy ERPs — Tally ERP 9, Busy, Marg, SAP Business One and old custom systems — onto the Nidhi Suite. We migrate masters, opening balances, GST history and open documents, run old and new side by side until the numbers match, then support you on an annual retainer. Migration is included in every plan.

Tally ERP 9 → Busy → Marg → SAP Business One → Old custom systems Cloud or your own servers Unlimited users
Why businesses move

The old ERP still works — it just stopped keeping up

Most businesses do not leave Tally ERP 9, Busy or Marg because the software failed. They leave because the business outgrew it: stock lives in one place and billing in another, reports get rebuilt in Excel every month, a second branch or warehouse means another workaround, and the custom changes you need depend on someone who is no longer around. The fear that keeps people from moving is always the same — years of ledgers, GST returns and open orders that nobody wants to retype. That fear is what this service removes.

What gets migrated

Everything your business runs on moves across — nothing is retyped

During the free assessment we look at what your current system holds and how it can be exported. Then each item below is mapped to its place in the Nidhi Suite and migrated.

Accounts

Ledgers and opening balances

Your chart of accounts, ledger groups, party ledgers and opening balances move into Nidhi Books, so your first day in the new system starts from the same trial balance as your last day in the old one.

Masters

Customers, suppliers and items

Customer and supplier masters with GSTINs and addresses, item masters with HSN codes, units and tax rates, and price lists — mapped once, cleaned of duplicates where we find them, and carried across.

Compliance

GST return history

Your past GST return data comes with you, so you can still look back at what was filed when a notice, an audit or a buyer's reconciliation question arrives.

Stock

Stock items, batches and locations

Stock items with quantities, batches and godown or warehouse locations move into Nidhi Inventory, so stock on hand matches what is physically on your shelves from day one.

Open documents

Open invoices and orders

Unpaid sales invoices, pending purchase bills, and open sales and purchase orders are migrated so receivables, payables and pending deliveries carry on without a break.

Systems we migrate from

Tally ERP 9, Busy, Marg, SAP B1, custom

We migrate from Tally ERP 9, Busy, Marg, SAP Business One and older custom-built systems. If your system is not on this list, the assessment tells you honestly what can and cannot be moved. Comparing an Odoo partner's quote? See Varisya vs an Odoo implementation partner.

How it works

Four steps from your old ERP to the Nidhi Suite

For how long implementations usually take and what drives the timeline, read our software implementation timeline guide. For the full rollout beyond migration, see Varisya as your software implementation partner.

Before you decide

The six worries that keep businesses on Tally ERP 9, Busy and Marg — answered

Owners and finance heads rarely doubt that a newer system would help. What stops them is what could go wrong on the way. Here is how the migration handles each of the worries we hear most.

Data loss

"Years of entries could go missing."

Nothing is deleted. Your old Tally ERP 9, Busy or Marg data stays exactly where it is. After the migration we check the Nidhi Suite against it: trial balance, party outstanding and stock on hand must match before you switch.

Customisations

"Our add-ons and custom reports won't survive."

This is the real risk in most migrations, and it is rarely the core data. The free assessment lists every Tally TDL add-on, custom report and integration you depend on. For each one we tell you whether it is rebuilt in the Nidhi Suite, replaced by something standard, or no longer needed.

Downtime

"We can't stop billing for a week."

You don't stop. During the parallel run your team keeps billing in the old system. The switch-over date is yours to choose, and we plan it away from GST filing deadlines and your year-end close.

Staff retraining

"My accountants know Tally shortcuts by heart."

Your team learns Nidhi Books and Nidhi Billing on your own ledgers, parties and items during the parallel run, not on a demo company. You go live only when the people who enter the vouchers are comfortable entering them.

Your CA

"Our CA works in Tally."

In the assessment we ask what your CA needs from you each month and at year-end: trial balance, ledger statements, GST return data. Before go-live we check that you can produce each of them from the new system.

Cost

"Migration projects always overrun."

There is no separate migration project to overrun. Migration is included in every annual plan, from ₹39,000/year excluding GST with unlimited users. The assessment tells you which plan fits before you commit to anything.

Who this is for

Who should migrate — and who should not

This fits growing businesses that have outgrown Tally ERP 9, Busy, Marg, SAP Business One or an old custom system — typically manufacturers and distributors juggling multiple godowns, branches or users, rebuilding reports in Excel, or needing changes their current setup cannot make. If years of data are what is holding you back, this service exists for you.

It is not for everyone. If your current ERP handles your volume, your team is comfortable and you are not fighting workarounds, staying where you are may be the right decision — and we will say so in the assessment. If your problem is not the ERP but the spreadsheets around it, start with Excel to automation instead.

Pricing

Migration is included in every plan

There is no separate migration project fee. Every plan is annual, includes unlimited users, and runs on cloud or your own servers. Prices exclude GST.

Plan Price Customisation Support
Essential From ₹39,000/year Standard customisation Next-business-day email support
Professional ₹79,000/year Priority customisation with a monthly roadmap Same-day priority support (phone, WhatsApp, email)
Enterprise Custom, from ₹1,49,000/year SLA-bound delivery + 1 custom module 24×7 support with hours-level SLA and an account manager

See the full comparison on the pricing page, and for what goes into an implementation budget, read software implementation cost in India. After go-live, the system is looked after under dedicated software support.

Common questions

Frequently asked about ERP migration

Can I move from Tally ERP 9 to a new ERP without losing my old data?

Yes. Varisya maps your Tally ERP 9 ledgers, item and party masters, opening balances, GST return history and open invoices and orders into the Nidhi Suite, so nothing is retyped. Your old Tally data is not deleted — you keep it, and both systems run side by side until the numbers match.

What does ERP migration cost in India with Varisya?

Migration is included in every Varisya plan rather than billed as a separate project. Plans start at ₹39,000/year (Essential), with Professional at ₹79,000/year and Enterprise custom from ₹1,49,000/year. Prices exclude GST and every plan includes unlimited users.

Will my business have to stop billing while the ERP is being migrated?

No. During the parallel run your team keeps working in the old system while the same transactions are reconciled in the Nidhi Suite. You switch over only when the numbers match and you are satisfied, so there is no day where billing stops.

We use Busy or Marg software — can you migrate us too?

Yes. Varisya migrates businesses from Busy, Marg, Tally ERP 9, SAP Business One and older custom-built systems. The free assessment looks at what your current system holds and how it can be exported, and tells you what will move across before you commit.

Is it worth replacing an old ERP that still works?

Not always. If your current system handles your volume, your team is comfortable and you are not fighting workarounds, staying put can be the right call. Migration makes sense when the old ERP has become the bottleneck — manual exports into Excel, missing integrations, limited users, or nobody left who can change it. The free assessment is where we tell you which side of that line you are on.

Can the new ERP run on our own servers instead of the cloud?

Yes. The Nidhi Suite runs on cloud or your own servers — it is a deployment choice you make during the assessment, and the migration process is the same either way.

Who supports the system after we go live?

Varisya does, under the same annual retainer. Essential includes standard customisation and next-business-day email support; Professional adds priority customisation with a monthly roadmap and same-day priority support on phone, WhatsApp and email; Enterprise adds SLA-bound delivery, one custom module and 24×7 support with an account manager.

We've used Tally for 12 years and have a lot of TDL customisation — will all of that move across?

Your data moves across: ledgers, masters, opening balances, GST return history and open documents. TDL customisations are code written for Tally, so they do not move automatically. In the free assessment we list each one and tell you whether it is rebuilt in the Nidhi Suite, replaced by a standard feature, or no longer needed. You know this before you commit.

Our CA still works in Tally — will they be able to work with our books after we move?

Yes. In the assessment we ask what your CA needs from you each month and at year-end: trial balance, ledger statements and GST return data. Before go-live we check that you can produce each of them from Nidhi Books. Your old Tally data stays available for earlier years.

Our accounts staff only know Tally — how do we retrain them without slowing the business down?

Your staff learn the Nidhi Suite on your own data during the parallel run, while billing continues in the old system. You switch over only when the people entering vouchers are comfortable, so retraining happens before go-live, not while the business depends on the new system.

Start with a free assessment

Tell us what you run today. We will tell you what moves across and which plan fits.

A free assessment of your current ERP, your data and how your team works — with a clear answer on whether migrating is worth it. Migration is included in every plan, from ₹39,000/year.

Prefer email? Write to [email protected]. We reply within one business day.