After preparing e-tds/e-tcs return, it is basic requirement to download .csi file from internet through http://www.tin-nsdl.com/. In case you are going to prepare e-TDS/e-TCS return of Salary/Non-Salary or another, there is no need to download .csi file for each purpose. I mean to say .csi file can be downloaded once (one time) for all like as 24Q,26Q and 27EQ. And also no need to reconcile challan status on line. It will be automatically chekced while creating file from NSDL software on attaching .csi file in offline mode.
Just enter your Tan Number and select period From and To and immeditaley press "Download Challan File". There is no need to click "View Challan Detail".