Choose the right referees, brief them properly and avoid the last-minute recommendation request.
The best referee is usually the person who can describe your work in detail. A professor who supervised your project may be more useful than a famous professor who barely remembers your name.
Match the referee to the scholarship. For a research award, choose someone who can discuss your research ability. For a leadership award, a supervisor who saw you coordinate people may have stronger evidence.
Send the referee your CV, transcript, scholarship link, deadline, programme description and a short list of projects or achievements they personally know. Tell them what you are applying for, but do not tell them what to write word-for-word.
Some scholarships let you upload a signed letter. Others send a private link to the referee. Some require an institutional email. Read the exact process before you ask the referee, then give them enough time to complete it.
Send one polite reminder several days before the deadline. After submission, thank the referee and keep the final scholarship decision updated. A good relationship can matter for your next application too.
Three to four weeks is the minimum notice for a letter you actually want. Under a week and you are asking for a template with your name pasted into it.
Ask in person or on a call if that is possible, then follow with everything in writing. The conversation lets a referee decline gracefully, which matters more than it sounds. A lukewarm letter from someone who felt cornered does more damage than no letter, because admissions committees read hedging fluently.
Assume your referee is writing four letters that month and remembers you well but not precisely.
Send your CV and transcript in one message. Add the scholarship link, the exact deadline and the submission method, because portal-based letters and emailed letters need different things from them. Include a short note listing two or three specific pieces of work they personally supervised, with enough detail that they can quote a result rather than an impression.
Do not send a draft letter for them to sign. Some referees ask for one, and that is their call, but offering it unprompted reads badly.
Committees are comparing letters, so the useful question is what makes yours different from the pile.
Specific beats superlative every time. "Top student I have taught" is unverifiable and every file contains it. "Ranked second in a cohort of 84, and rebuilt the data pipeline for our final-year project after the original approach failed" is checkable and memorable. The second one also implies the referee was actually present.
Length is not quality. A focused page from someone who supervised you outperforms three pages of generalities from a department head who did not.
One reminder at the ten-day mark, one at three days. That is the whole protocol.
Keep both short and include the deadline again, since your referee is not tracking it. If the portal shows the letter as received, say thank you and stop. If the deadline passes and nothing has arrived, contact the scholarship office rather than panicking at the referee, because many programmes accept letters a few days late when the applicant submitted on time.
Run your own numbers with a calculator built on your university's actual grading scale.