1. The Khilji dynasty ruled Delhi from 1290 to 1320.

2. The founder of this dynasty was Jalaluddin Firoz Khilji, who gained power by killing Kaiqubad in 1290.

3. The most famous ruler of this dynasty was Alauddin Khilji, who ruled from 1296 to 1316.

4. Alauddin Khilji had conquered Chittor, a powerful state of Rajputana, in 1303 AD.

5. There were two great generals Ulugh Khan and Nusrat Khan in the Khilji dynasty.

6. Also worked on Alauddin Khilji's market system and land revenue administration.

1. There are three types of blood cells made by the bone marrow: red blood cells, white blood cells, and platelets.

2. Red blood cells carry oxygen and carbon dioxide around the body. White blood cells fight infection. Platelets help form blood clots.

3. Bone marrow is a tissue located in the hollow interior of long bones.

Trishul is the name of a short range surface to air missile developed by India as a part of the Integrated Guided Missile Development Programme. It has a range of 9 km and is fitted with a 5.5 kg warhead. Trishul flies in supersonic speed and has a low altitude sensitive radio altimeter and height lock loop control on board, to skim over the sea at a very low altitude and hit against sea skimming missiles coming towards our ships.