can i do bca after completing 10+2 from commerce stream without having maths??

Yes you can do bca without maths some institutions are there like IGNOU, sharda university. If you want to know more you can search on google "colleges offering bca without maths" and you can add college name also.

I suppose you cannot pursue BCA without maths in 12th.Coz for the first 2 sems you have maths subjects which are quite tough!!!!! You can go for B.Com(Accounting & Finanace) or B.Com(Bnaking and Insurance).These 2 streams will give you a good career ahead......and they are in demand now!!!! good luc