This is one of the worst and unprofessional compa...

This is one of the worst and unprofessional company I have every seen. I am fresher and I gave interview they told me I am selected. Then they kept me waiting for more then 15 days. I have received the call after 15 days from them then asked me to send my information so, that they can send an offer letter I sent it to them. But next day they have messaged me that we can not hire you when I asked for the reason they did not have any. I am a fresher and getting such kind of experiences is really bad.