Option 1: 1210 AD - This cannot be the correct answer as Timur Lang invaded India much later.

Option 2: 1398 AD - This is the correct answer. Timur Lang invaded India in 1398 AD. He launched an invasion from Central Asia and his army wreaked havoc in Northern India, particularly in Delhi.

Option 3: 1492 AD - This is not the correct answer. The invasion by Timur Lang occurred before this year.

Option 4: 1526 AD - This is not the correct answer. The invasion by Timur Lang occurred long before this year.

So, the correct answer is option 2: 1398 AD.