img src="https://img.jagranjosh.com/images/2024/June/2762024/ncert-class-12-biology-practical-lab-manual-pdf.jpg" width="1200" height="675" /> NCERT Class 12 Biology ...

The protesters, many of them lab technicians and machine operators for the past 25 years ... of the manpower and housekeeping staff has created a hostile environment in CSIR-IICB... The Director of ...