Many patients face technical issues while booking AIIMS OPD appointments online. Sometimes the website does not load, OTP is not received, slots do not appear, or payment fails. These problems can be stressful, especially when appointment slots are limited.
If your AIIMS online appointment is not working, this detailed 2026 troubleshooting guide will help you understand the reasons and provide step-by-step solutions.
Common Problems While Booking AIIMS Appointment Online
Patients usually report the following issues:
- ORS website not opening
- OTP not received on mobile
- No appointment slots available
- Error during submission
- Payment failure
- Appointment not showing after booking
- Server timeout error
Understanding the exact issue helps in finding the correct solution.
ORS Website Not Opening
Sometimes the Online Registration System (ORS) portal may not load properly.
Possible Reasons
- High traffic on portal
- Server maintenance
- Slow internet connection
- Browser compatibility issues
How to Fix
- Refresh the page after a few minutes
- Try during non-peak hours (early morning or late night)
- Switch to a different browser
- Clear browser cache and cookies
- Use stable internet connection
Most portal errors are temporary due to heavy traffic.
OTP Not Received During AIIMS Registration
OTP verification is required to confirm your mobile number.
Reasons for OTP Failure
- Network issue
- Incorrect mobile number entered
- SMS blocked settings
- Server delay
Solutions
- Wait for 2–3 minutes before retrying
- Check mobile signal strength
- Ensure DND is not blocking messages
- Restart mobile device
- Try alternative mobile number
Avoid multiple rapid attempts, as this may temporarily block the session.
No Appointment Slots Available
This is one of the most common problems, especially in major AIIMS hospitals.
Why Slots Do Not Appear
- All slots booked
- Limited daily quota
- Booking window not opened yet
- Department not available on selected day
What You Can Do
- Check exactly at midnight or early morning when slots open
- Try alternate dates
- Check nearby AIIMS branch
- Visit offline registration counter early
Popular departments like Cardiology and Neurology fill very quickly.
Error During Appointment Submission
Sometimes after filling details, an error message appears.
Possible Causes
- Session timeout
- Slow internet
- Browser incompatibility
- Multiple tabs open
Fix Steps
- Close all extra browser tabs
- Log out and log in again
- Use updated browser version
- Avoid refreshing during submission
Always note your Appointment ID once booking is successful.
Payment Failure During Online Booking
In some AIIMS branches, minimal registration fee payment may fail.
Reasons
- UPI delay
- Bank server issue
- Incorrect payment details
Solutions
- Check bank balance
- Wait 5–10 minutes before retrying
- Avoid double payment
- Check if appointment was confirmed before paying again
If payment deducted but appointment not confirmed, contact hospital helpdesk.
Appointment Not Showing After Booking
Sometimes patients do not see appointment confirmation.
Check These First
- SMS inbox
- Spam folder (for email confirmations if applicable)
- ORS appointment status page
If still not visible, it may indicate incomplete booking.
Avoid visiting hospital without confirmation message.
Server Timeout or Session Expired Error
This usually happens when:
- Page is inactive for long
- Internet disconnects
- Too many users on portal
To fix:
- Restart booking process
- Complete form quickly
- Use stable network
Best Time to Book AIIMS Appointment Online
Booking during peak hours often causes errors.
| Recommended Time | Reason |
|---|---|
| Early morning (5 AM – 7 AM) | Lower traffic |
| Late night | Reduced server load |
| Avoid 10 AM – 2 PM | High user traffic |
Planning your booking time increases success rate.
When to Use Offline Registration Instead
If online booking repeatedly fails:
- Visit hospital early morning
- Carry required documents
- Check same-day token availability
Offline registration is still available in most AIIMS hospitals.
When to Contact AIIMS Helpdesk
Contact hospital helpdesk if:
- Payment deducted but no confirmation
- Appointment ID lost
- Technical issue persists for several days
- Portal error continues
Use official contact details from hospital website.
Important Safety Advice
Avoid using third-party agents or unofficial websites claiming guaranteed AIIMS appointments. Always use official government portal.
Sharing OTP with strangers can lead to fraud.
Frequently Asked Questions
Why is AIIMS appointment website not opening?
It may be due to high traffic or temporary server maintenance.
Why am I not receiving OTP for AIIMS booking?
Network issues or incorrect mobile number entry are common reasons.
What should I do if payment failed but money deducted?
Wait for confirmation message and contact hospital helpdesk if necessary.
Can I book appointment without online portal?
Yes, offline registration counters are available in most AIIMS hospitals.
Final Summary
AIIMS online appointment issues are usually temporary and related to heavy portal traffic. Most problems can be resolved by checking internet connection, booking during non-peak hours, and carefully entering details.
If online system continues to fail, offline registration remains an alternative option in many branches.