They called me for an interview, turns out there was a two hour test at first by way of which they expected you to read three agreements (100 pages each) and answer the questions that they had formed. Post two hour exam, i was asked to wait for another round of interview with the manager. I waited for good one and a half hour, the HR lady tells me later on that i am done for the day and they will get back to me in sometime. The same day, the HR lady sends me a mail saying that i have to be available on the next day for another round of an interview with the manager. I confirmed my availability to the HR via mail and she responded positively. However, next day when i reach their office, the HR lady is completely taken by a surprise and tells me that she sent me that mail by mistake. She didn't even apologise for wasting my time