Shares of mining and power companies including Jindal Steel and Power, Hindalco, Sesa Sterlite, Tata Power and Reliance Power will see higher attention at the bourses as the Supreme Court is due to decide on Monday whether to cancel the allocations or to impose penalty. The apex court earlier this week ruled that the allocation of over 200 coal blocks since 1993 was illegal. A mass cancellation of coal blocks could send the stocks and benchmark indices into a tailspin.