"Services Selection Boards" are there to assess a candidate whether he/she is capable of leading men/women in the Defence Services.The only thing they look for is OLQ’s which is the one and only thing that matters It provide 100% reservation for those with Officer Like Qualities(OLQs) who can qualify SSB.
Reservation would lead to people without OLQ being selected…so no reservation is provided in SSB
HOPE YOU GET IT!!! BEST OF LUCK!!!