b.ed fees 2yr 2021 science side?& obc seats same stream??

See this is entirely dependent on the following factors:

1. The state from where you want to do B.Ed
2. Government/Private

You didn't mentioned any of these. So I am providing you the average fee for B.Ed is in the range of INR 10,000-2,00,000 dependent on the above mentioned factor. To get more precise answer I will recommend you to get back to career360.com (//career360.com) with properly reframed question so that we can provide you the answer you really want to know.

Some of the government BEd colleges in India are:

JMI New Delhi - Jamia Millia Islamia

IGNOU Delhi - Indira Gandhi National Open University

MSU Baroda - Maharaja Sayajirao University of Baroda

Jadavpur University, Kolkata

GGSIPU Delhi - Guru Gobind Singh Indraprastha University

For more government colleges you may visit the link below:

https://university.careers360.com/colleges/list-of-bed-universities-in-india?ownership=Public/Government

For private colleges you may visit the link below:

https://university.careers360.com/colleges/list-of-bed-universities-in-india?ownership=Private

I hope my answer helps you. All the very best for your future endeavors!