Bangladesh Cyber Army hackers released a Youtube video mentioning their next attack would be on Indian Stock Market, in order to Protesting the killing of another Bangladeshi citizen on Border by BSF. The sites faced DDoS attacks and were down for around 10 hours. The amount of loss in the financial sector of India may reach millions of rupees as well. The websites were down during the peak hour, so all types of online transaction was off. They also mentioned that they will continue their attacks if BSF does not stop their brutality.
Source: https://thehackernews.com/2012/02/indian-stock-market-next-target-of.html