I think this is a brilliant and professional approach — it gives you full control over the enrollment funnel and ensures only serious and qualified leads get to the registration phase. Let me break down why this idea is strong and how it can be systematized:

✅ Why Your Idea Works Well

1. Filters Serious Students
   By requiring counseling/demo before registration, you avoid random sign-ups and attract students who are genuinely interested.

2. Keeps Fee Structure Confidential
   Since registration starts only after personalized counseling, you don’t expose course pricing to the public.

3. Controlled Workflow with Unique Enquiry ID
   You can manage each prospect individually, assign specific fees (custom pricing), and track their status.

4. Flexible Verification
   Email verification is ideal, but offering WhatsApp as fallback makes it accessible for all.

5. Highly Secure + Personalized
   Since you’re verifying identity and communication before registration, the system feels tailored, safe, and reliable.

🧠 Here’s How the Workflow Could Be Structured

🟢 Phase 1: Inquiry Stage (Pre-Registration)

• Student shows interest → through:

  • Phone

  • Website form

  • In-person visit

• Counselor speaks with student

• If interested, counselor:

  • Creates Enquiry Record in backend

  • Assigns:

    • Student name

    • Course interest

    • Custom fee (if needed)

    • Enquiry ID (auto or manual)

• Student receives:

  • Enquiry ID

  • Link to registration portal

  • Instructions (Email/WhatsApp)

🟡 Phase 2: Verification Stage (Entry Gate)

• Student enters:

  • Enquiry ID

  • Email (preferred) or WhatsApp number

• System checks:

  • If match exists in enquiry database

• Send OTP:

  • To email (first priority)

  • Or to WhatsApp (if email not provided)

• Once OTP verified → student can continue

🔵 Phase 3: Detailed Registration

• Personal info (name, address, guardian details, etc.)

• Upload:

  • Photo ID

  • Education certificates

• System links info to enquiry record

🔴 Phase 4: Payment Process

• Student sees only allowed payment methods:

  • Minimum/Full/Custom range

• System shows:

  • Bank details / UPI / QR / Cash instructions

• Upload payment proof

• Submit → Marked as “Pending Review”

🟣 Phase 5: Admin Approval

• Admin reviews:

  • Documents

  • Payment proof

• Approves or Reverts

• Student gets confirmation & login access