H1B stamping after F1 to H1 and changing employer


I came to US on F1 visa in Aug 2007 and completed my masters. I was on OPT and then converted my status to H1B in Oct 2010. After my H1 approval I did not travel to India and so I do not have H1B visa stamped on my passport. I have changed my employer meanwhile in March 2013 and the new employer extended my H1B visa till March 2016. Now I am planning to go to India and get my H1B stamped.

  1. What kind of questions VO can ask since I changed my status from F1 to H1b and also changed the employer?

  2. Will there be any problem since I do not have H1B visa stamped from my previous employer?

  3. Are there chances of H1B rejection if I am on H1B status since last 3 and ½ years and never went to India for H1B stamping?

  4. I did not go to India in almost 5 years, because of study and work. Now I am planning to go. What should I answer VO if he asks me such kind of question?