Why 'IND' is written on Indian Vehicle number plates?

On Indian vehicle number plates 'IND' is written. Do you know the meaning of 'IND'? What is the significance? Why it is written on many vehicle number plates? What is High-Security Registration Plates and features?
On Indian vehicle number plates 'IND' is written. Do you know the meaning of 'IND'? What is the significance? Why it is written on many vehicle number plates? What is High-Security Registration Plates and features?

Different Car Registration Number Plates In India - DriveSpark

Wholesale india blank license plate With Cool Designs On Sale

India New Delhi Custom Novelty Car License Plate

Vehicles Of President, Vice President To Have Number Plates, Court Told

Man changing the car registration plate in Rajasthan, India Stock Photo - Alamy

What is High Security Registration Plate: Full Details Explained

All You Need To Know About Vehicle Number Plates In India

Different Types of Number Plates in India and their Meaning

Bharat series vehicle registration: Here's how to get a BH plate and its benefits

What is the significance of the number plates in India with black background and yellow numbering? - Quora