hello aspirant,

most of the private colleges need 50% marks in 10+2 for general category people. 

and 45% marks for sc/st candidates. however in gujrat most of the colleges need guhcet score to get admission in btech.

you have not mention either you have gujcet or jee main score!

however if you could not get any tier 1 college according to  your rank it will be good to you join bca.

there are many mnc's in india how hiring bca candidates for software engineering profile.

hope you get my point.