Citi Senior Software Developer interview questions

I felt as if it was a bit more formal than most interviews. The interviewers had relatively easyish questions for me, but they seemed a bit simple, for a Senior Developer.

The interview process is very slow ,i got call from HR for and interview followed with 2 technical and 1 HR Round ,after two technical the HR told me your application is on hold and we will update you after three week received again one call for an interview from them for another team but that got cancel as panel is not available still not received any call.