India Post — negligence in delivering postcards

Address: Jaipur, Rajasthan, 302012

I am a school teacher and to make my students understand the working of indian postal services i asked them to write postcards to their parents. But even after 10 days none of the postcards reached at the destination. When i requested the concerned post office to look into the matter. They refused to take any responsibility. Sir if postcards are not responsibility of none then why postcards are still there to be sold. Every correspondence is made by simple posts but as per post office panchyawala, jaipur rajasthan 302012 simple posts are not the responsibility of post offices it is just like ram bharose. A simple letter is not a piece of paper but it carries emotions of people. If they will be not delivered to the destination it will be a set back to the ink and paper generation. Sir please look into the matter and resolve the above mentioned issue as soon as possible.
Thank you
Regards
Virat poonia
The oxford scholar's academy
Jaipur rajasthan 302012