Karthikeya, the captcha you find on the results page of iOM Silverzone olympiad is actually the 4 digit number written just above the textfield meant for captcha. You can find it below the email address field and above the captcha field. If the captcha is not readable to you, you can reset it using the blue button just below the captcha.
It is used to ensure that the request is not coming from a robot but from a legitimate human user. Hope it helps.
Crack JEE with AI Based JEE Online Foundation Course
Answer Key | Eligibility | Application | Preparation Tips | Exam Pattern | Result | Dates
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile