Writing Skills (letters, reports, essays, notices)
In the writing section, format carries its own marks. A well-argued letter in the wrong layout scores below a plain letter in the right one, so learn the skeletons before polishing the prose.
Formal letter
Sender's address, date, receiver's designation and address, a one-phrase subject line, "Dear Sir/Madam", three short paragraphs (purpose, detail, action requested), then "Yours faithfully" and your name. Use "Yours sincerely" only when you have named the person ("Dear Mr Singh").
Notice
Box it, keep it near 50 words, answer who/what/when/where/why, write in the third person, and sign with name and designation at the bottom left. No salutation, no "I".
Report
Heading, byline ("By -"), place and date, past tense, third person, factual only. No personal opinion.
Essay
Introduction stating a clear position, two or three body paragraphs each carrying one idea with an example, and a conclusion returning to the opening position without new material.
Worked example
Notice task: a wristwatch found in the school library. Reasoning: the audience is students, so the boxed notice must state what was found, where, when, and where to claim it. Third person keeps the register impersonal ("A wristwatch was found ..."). Contact details plus a name and designation close it. Adding "I hope you will help me" breaks both the word limit and the impersonal tone.
Traps
Pairing "Yours faithfully" with a named addressee; omitting the subject line; turning a report into a story; exceeding the word limit; filling a formal letter with "I am fine here and hope the same for you".