Dear HR,
This in not ethical and possible to have instant reference check for all the candidates in case of bulk hiring, as this process is very lengthy process, before giving offer letter of letter of intent, however,Companies should add a column in there offer letters and ask the candidate to write it in his own handwriting "I understand that this offer letter would be null and void if any thing found wrong in my verification check and legal action will be taken against me."
Ram Chauhan,
Sr. HR Recruiter
8802858277