H1B- Multiple Employers

Hello Friends,
This year I have applied from two employers and got selected in lottery and approved.
Employer1 (one of the company from USA)
Employer 2 (One of the Top most MNC in INDIA)

I am very much interested with first one. Please clarify my questions.

  1. If I go for stamping with the first one and incase if visa got RFE or rejected then I go for stamping with the Second employer?

  2. if first question is YES , would be any impact on second one?

  3. Do I need to update any info to employers that I have two H1B petitions processed for the year?

  4. Does any affect on second one if first one got rejected?

Please clarify………