OTP SMS (One-Time Password) is a secure, auto-expiring code sent via SMS to verify a user’s identity during login, transactions, or signups.

Why should my business use OTP SMS?

OTP SMS enhances security, prevents fraud, and builds trust by ensuring only verified users can access your services or complete sensitive actions.

How fast is OTP SMS delivery?

Our OTP SMS service ensures instant delivery within seconds, even during high traffic — ensuring a smooth and secure user experience.

Can OTPs be customized or branded?

Yes, OTP messages can include your brand name, custom text, and even sender ID (depending on telecom regulations) for a professional touch.

Is your OTP SMS service reliable and scalable?

Absolutely. We offer enterprise-grade infrastructure with 99.9% uptime, supporting thousands of OTPs per second — perfect for apps, banks, eCommerce, and startups.

Is the Lucknow mobile number database DND filtered?

Yes, we provide both DND and Non-DND filtered numbers, depending on your campaign needs.

Which areas in Lucknow are included in the database?

The database includes major zones like Hazratganj, Gomti Nagar, Indira Nagar, Alambagh, Aminabad, and more.

Can I use the data for WhatsApp Business API campaigns?

Absolutely. Our data is ideal for WhatsApp outreach, SMS marketing, and telecalling campaigns.

What format is the database delivered in?

You’ll receive the database instantly after purchase in Excel or CSV format for easy integration.

Are these leads category-specific?

Yes. You can choose leads based on industry such as education, retail, healthcare, real estate, etc.

What is WhatsApp Business API?

WhatsApp Business API allows companies to send automated, interactive, and large-scale messages to customers through WhatsApp.

How much does Astral Promotion charge?

Pricing starts from ₹999 per month with scalable plans and no hidden fees.

Is it suitable for schools, clinics, and businesses?

Yes, our WhatsApp API solution is ideal for education, healthcare, retail, real estate, and more.

OTP SMS (One-Time Password)

A type of high-priority transactional SMS, used for secure logins, payments, or verifications.

Instant delivery within seconds

Example: “Your login OTP is 987654.”

otp sms Service Provider in India | Astral Promotion > Products > OTP SMS (One-Time Password)

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