WBCS Exe. Prelims 2020 Prev. Yr. Paper

The commander of Alauddin Khilji's forces during his Deccan campaigns was

When the first Independence day was celebrated in India?

Which city is located along Mula-Mutha River from the following?

Going $50\text{m}$ to the south of her house, Radhika turns left and goes another $20\text{m}$. Then turning to the north, she goes $30\text{m}$ and then starts walking to her house. In which direction is she walking now?

Natural radioactivity was discovered by