शिक्षण पद्धति के रूप में अभिक्रमित अनुदेशन (Programmed instruction) मुख्य रूप से किस मनोवैज्ञानिक सिद्धांत पर आधारित है?

The arrival of which commission in India triggered widespread protests, including mass hartals across the country in 1928?

Which of the following leaders was instrumental in initiating and leading India’s struggle for independence?