is b.ed possible after doing bsc.biotechnology....and side by side if i want to continue my mcs.biotechnolgy private..plz guide me about thi

Yes, however it will be very difficult for you to get job as Biotech is not offered as a separate subject at school or junior college level. I suggest you should do M.Sc. and then apply for NET. This will help you to get job as a lecturer to teach biotech at university level. You may need to study a