CBI on Monday arrested an IAS Officer and former Industries Secretary to the Government of Andhra Pradesh, Srilakshmi in Obulapuram mining irregularities case. Senior CBI officials have confirmed her arrest. With this, four persons have been arrested so far in the mining case. Meanwhile, the CBI Special Court has extended the remand of Jarardan Reddy and Srinivas Reddy, who have been under judicial remand upto the 3rd of next month.