Hello Aspirant,
Yes, you are eligible to apply to the B.Sc. B.Ed. (Integrated) programme. Because you have a PCM background and scored 69% in 12th boards, you are eligible under the basic eligibility criteria many universities will have. These criteria usually require 50–55% marks in 12th + science subjects. There are a few universities that accept students from Delhi for the B.Sc. B.Ed integrated programme. Here's a list of some of them:
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