Hi neeraj, 

Thanks for the question.. You can definitely get admission in any of the college provided you prepare well for the cat exam and also crack group discussion and interview with flying colours. .as the B schools you mentioned doesn't emphasise more on past academics although in some Institutes you mentioned might have eligibility criteria like minimum 50% required in 10th and 12th...so do take note of such Institutes before filling there forms as you have less than 50% in your 12th..

All the best