The stock of SREI Infrastructure Finance tumbled 4.7 per cent with good volume, breaching a key psychological support level of ₹100 on Wednesday. This fall gives traders with a short-term perspective an opportunity to sell the stock at current levels. The stock has been in a medium-term downtrend since marking a 52-week high of ₹137.7 in late July this year. Moreover, short-term trend has been d...