Amir Timur, commonly known as Tamerlane, was a prominent military leader and conqueror of the 14th century. He was born on April 9, 1336, in the city of Kesh, present-day Uzbekistan. Tamerlane's empire expanded across Central Asia, Persia, and parts of the Middle East, making him one of the most formidable conquerors in history.

Tamerlane's Invasion of India:
Tamerlane invaded India in 1398, during the reign of Sultan Nasir-ud-Din Mahmud Shah Tughlaq of the Tughlaq dynasty. His invasion was a part of his conquest to expand his empire and acquire wealth and resources from the Indian subcontinent.

Results of the Invasion:
1. Destruction and Devastation: Tamerlane's invasion resulted in widespread destruction and devastation in the Indian cities. He captured and looted numerous cities, including Delhi, which was left in ruins. The invasion caused immense loss of life and property.

2. Massacres and Massacres: Tamerlane's forces committed brutal massacres, killing thousands of people during the invasion. The city of Delhi witnessed a horrific massacre, known as the "Slaughter of Delhi," where an estimated 100,000 people were killed.

3. Political Instability: The invasion of Tamerlane further weakened the already declining Delhi Sultanate. It created a power vacuum and increased political instability in the region.

4. Economic Consequences: The invasion resulted in a significant economic setback for the Indian subcontinent. Tamerlane plundered vast amounts of wealth, including gold, silver, precious stones, and other valuable resources.

5. Cultural Impact: Tamerlane's invasion had a profound impact on the cultural landscape of India. Many historical buildings, monuments, and libraries were destroyed, leading to the loss of valuable cultural and historical artifacts.

6. Resistance and Defeat: Despite the initial success of Tamerlane's invasion, he faced fierce resistance from various regional rulers and armies. The most notable resistance came from the Rajputs, who fought valiantly but were eventually defeated.

In conclusion, Amir Timur's invasion of India in 1398 resulted in widespread destruction, loss of life, and economic setbacks. The invasion further weakened the declining Delhi Sultanate, leading to increased political instability in the region. The cultural impact was significant, with the loss of historical artifacts and destruction of monuments. However, various regional rulers and armies put up resistance against Tamerlane, displaying their determination to protect their lands.