Yeah I just updated him as Relative. Points are 475 now. Hope I will get an ITA in next draw.There you go.
460 points is enough to get invited. The most recent draw was 459, with the prior two being 460 and 462. If you really want, you can edit your profile and add him. And yes, you only get 15 CRS points for a brother/sister in Canada. You can see the details of the CRS grid here
https://www.canada.ca/en/immigration-refugees-citizenship/services/immigrate-canada/express-entry/eligibility/criteria-comprehensive-ranking-system/grid.html
Thank you everyone who helped and who posted their views. Truly appreciate it!