I guess it is :

To be successful and to achieve it every student works hard in the examination.

Media has ceaselessly plagued and characterized society and has progressed with technology. The conventional types of media engendering including TV, daily papers, publications and email stay as proficient as before the presentation of more up to date techniques. Email, sites, e-zines and social online media have supplanted costly media creation, for example, magazines and photographic paper. 

It has been contended that media has brought about an era of couch potatoes who once in a while take part in open air exercises. It has turned out to be rarer to discover somebody who has great handwriting since writing is presently the favored aptitude. Then again, media has realized a positive feeling of globalization and has been a decent base for education. Children of today learn languages quicker on account of media. They may, however, be presented to appraised content which general bites on the ethical fiber of society. Balanced governance in this manner must be better implemented to secure little eyes and ears. 

Traditional media says a lot with regards to supportability and lessening of the carbon impression. Individuals need to print less and travel less when data is expeditiously and advantageously profited at their doorstep, post box, inbox, TV or blog. In spite of the fact that media is universal, it has made an interest for thrilling scope. Certain issues that feature today would not have been viewed as newsworthy a century back. Hype is made, security is encroached on and the truth is adjusted frequently in contemporary media.

In CBSE Board Exams the format is pretty simple.
Start with the topic as the heading in the center. Say let's assume one for this answer: Should Reservation be removed. Let's say you are writing for the topic i.e. you believe Reservation should be removed.

The first paragraph contains the salutations and self introduction, based on the situation provided if any. It also states your stance on the motion i.e. for or against the topic. For example,

<i>Good morning everyone. Esteemed judges, guests , teachers and my fellow students. My name is ABC, and today I will be speaking for the topic "Should Reservation be removed".</i>

(Assuming the setting of a debate competition)
You can also add a few introductory lines in this paragraph or choose to start your argumentation in the next paragraph. I generally prefer to start in the next paragraph as it makes the written piece more organized.

The second paragraph is the major body of the debate. You introduce the topic here, and provide your argumentation or justification for why you chose your stance. In our example, you can start off by giving a brief introduction to the Reservation system in India, and since you are writing to remove reservation, you can give reasons why Reservation is bad, and how removing reservation can benefit which section of the society, as well as how to handle the consequences, if any, removing Reservation.
A small tip. If you have multiple arguments, and have sufficient to write about each one, you can break the body into multiple paragraphs as well. Try your best to avoid making more than 2-3 paragraphs though, and stick to word limit.

The final paragraph is the conclusion. A brief gist of your arguments, and reiteration of your strongest points. Try to write this between 5-6 lines, and end with a "Thank you for your patient hearing."