Wipro Front End Developer interview questions

Got an email from Wipro recruiter out of the blue (a month after applying) with no introductions, nothing. Just asking me for my availability for a phone interview that same day. I responded that I was currently working and happy to explore alternate days/times to talk. No response for 3 weeks. Then another email asking for days/times s quickly as possible. I responded with availability and a phone interview was scheduled on google calendar which I accepted. The very next day this was cancelled. No explanation, no apology, nothing. Just canceled. Exceedingly unprofessional and not a company I would consider working for, after this.

Applied through vendor company, wipro conducted Skype call . Asked questions from requirement document and from resume. Interviewer is very cool. After this they conducted client interview. Asked simple and straight questions