Give Reasons.

The postal department tries to preserve the heritage and integrity of Indian culture through postage stamps.

1. The Postage stamps are an important source of information which reveals a lot of changes over a period of time due to the variety in the sizes of these stamps, the novelty in their subjects and colour schemes.

2. The Postal Department issues postage stamps on a wide variety of themes like political leaders, animals, flowers, and birds.

3. They also highlight events, of the silver golden diamond jubilees, or centenary, bicentenary, the tercentenary of different events.

4. Such vivid variety of stamps, therefore, contributes significantly as a valuable repository of history.