Why did stock market crash over 1,400 points today?

Sensex crashed over 1,400 points on Tuesday, wiping out nearly ₹11 lakh crore in investor wealth. A market expert said PM Narendra Modi's austerity call amid the West Asia crisis weighed on sectors such as jewellery, travel and hospitality. Investor sentiment was further hit by the rupee touching fresh lows, rising crude oil prices and the unresolved US-Iran conflict.