Is SSB exam allowed for girls for 10+2?

No, ssb can only be given by once who have completed their graduation from a recognised university by the government. Nda exam after 12 is applicable only for boys , girls cannot appear in that.

After graduation it provides opportunities to girls also. The examination occurs twice in a year and a final year graduation student of min age 19 is eligible to appear in the examination. The maximum age limit is 25 and the examination takes place in three phases i.e, MCQ ( first stage ) then medical or physical fitness check up followed by a 5 day interview.

I hope this helps.....