SMS, OTP & WhatsApp

Verify customers with a one-time password, confirm orders and bookings automatically, and send payment receipts — by SMS, WhatsApp or email. We handle the setup and the DLT paperwork; you pay simple, upfront prices.

What you can send

OTP login

Customers sign in or verify their number with a 6-digit code.

Order updates

Confirmed, out for delivery, delivered — sent automatically.

Reminders

Appointments, renewals, fees and payment due dates.

Receipts

Payment confirmations and invoice links, the moment money arrives.

Setup prices

One-time setup on your Ankdya website, app or software. Message charges are separate — from SMS packs below, or Meta's WhatsApp charges at actual cost.

OTP Login / Verification Setup

Best for: websites & apps that need mobile verification

Ready in 2–4 working days

₹3,000one-time

  • Mobile-number OTP login or verification
  • Expiry, resend limits & abuse protection
  • Works on your Ankdya website, app or software
Enquire

SMS are charged from the SMS packs below. DLT registration (required by TRAI) is done in your business name; any operator fee is paid by you.

WhatsApp Business API Setup

Best for: automatic order, booking & payment messages

Ready in 5–7 working days

₹5,000one-time setup

  • Official WhatsApp API on your business number
  • Automatic order confirmations, reminders & OTPs
  • Message templates approved for you
  • Broadcast offers to opted-in customers
Enquire

Meta's per-message charges are billed at actual cost. Green tick verification is decided by Meta.

Transactional Email Setup

Best for: order, invoice & password emails

Ready in 2–3 working days

₹2,000one-time

  • Automatic emails from your own domain
  • Inbox-friendly setup (SPF, DKIM, DMARC)
  • Templates with your logo
Enquire
SMS packs

Buy credits in packs — the bigger the pack, the lower the price per SMS. Delivery reports included.

DLT registration: TRAI requires a one-time registration of your business, sender ID and message templates before any SMS can be sent. We do the paperwork in your business name; any operator fee is paid by you.

OTP and transactional SMS packs
SMS packPer SMSPrice
1,000 SMS₹0.35₹350
5,000 SMS₹0.30₹1,500
10,000 SMS₹0.25₹2,500
50,000 SMS₹0.20₹10,000
Which channel?

Most businesses use SMS for OTPs, WhatsApp for order updates and offers, and email for invoices.

Comparison of SMS, WhatsApp and email for business messages
ComparedSMSWhatsApp APIEmail
Best forOTPs and short alertsOrder updates, reminders & offersInvoices, receipts & detailed info
Works without internetYes — any phoneNoNo
Images & buttonsNo — text onlyYesYes
Message costFrom your SMS packMeta's charge per messageUsually free at small-business volumes
One-time registrationDLT (TRAI)Meta business verificationDomain setup (SPF, DKIM, DMARC)
How it works

  1. Share your details

    Business name, PAN / GST or Udyam and the sender name you want.

  2. We register you

    DLT registration, sender ID and templates — or Meta verification for WhatsApp.

  3. We connect it

    OTP and automatic messages added to your website, app or software and tested.

  4. Messages go out

    Top up SMS packs whenever you need; see delivery reports anytime.

FAQ

What is DLT registration and why is it needed?

TRAI rules require every business that sends SMS in India to register on a telecom operator's DLT (Distributed Ledger Technology) platform, along with its sender ID (the 6-letter name shown as the sender) and message templates. Without it, SMS are blocked. We prepare and submit everything in your business name; any operator registration fee is paid by you.

How long does DLT approval take?

Business registration usually takes 2–7 working days, and template approval a day or two after that. Your OTP and SMS go live as soon as the templates are approved.

Can I send promotional SMS?

Our SMS packs are for OTPs and transactional messages (order, booking and payment updates). For offers and promotions, the WhatsApp Business API usually works better — messages can include images and buttons, and go only to customers who opted in.

Do SMS credits expire?

Validity depends on the SMS provider's plan at the time you buy. We confirm it on your invoice before you pay — for large volumes, ask us first and we'll suggest the best-value pack.

How much does a WhatsApp message cost?

Meta charges per message, depending on the type (marketing, utility or authentication). These charges are billed at actual cost, with no markup. Our ₹5,000 covers the setup, templates and connection to your website, app or software.

Can OTP be added to my existing website or app?

Yes, if it's built by Ankdya it's straightforward. For websites or apps built elsewhere, we check the code first and confirm before you pay.

Tell us what you want to send and roughly how many per month — we'll suggest the right channel and pack.