Here, I am giving you a correct format of "letter to the editor".

Yash marathe
Andheri west,
Mumbai
400001

Feb 05, 2019

Editor,
Times of India
10 Janpath Road,
Delhi

Subject: The downfall of educational interest of students in their studies

Sir,

I am Yash marathe studying in class .. in XYZ school, Mumbai. Every day I come across many students who were much good in their studies in past classes but they are loosing their interest in studies and their marks are going degraded each exam. I thought to write you a letter discussing the downfall of interest in studies of the students due to modern day technology.

In modern days as our technology is becoming advanced day by day, it is helping the mass as well as affecting in stacks. Students are wasting a lot of time in video games, social media, as these things grab their interest more than books and copies. But if all these factors are taken in a good way then the potential of students will increase to a greater extent. 

Sir, I want you to publish an editorial on this topic because a mass is getting affected by it. Hope you understand.

Yours truly,

Yash marathe
Student