Investors wealth to the tune of about Rs 6 lakh crore was wiped out during the week as the stock market witnessed a record single-day loss as well as gain on global developments.

The Bombay Stock Exchange barometer plunged by a record 1,408 points on Monday and 875 points (second biggest fall) on Tuesday after a credit crisis in the US and fears of imminent US recession created panic across the world markets.

Bourses at home were hit hard due to margin calls earlier in the week coupled with heavy pullout by Foreign Institutional Investors (FIIs).