Job switch TCS to bhari (Tasc outsourcing)

Hi,

I am a business analyst at TCS having 6 yrs of experience that includes 2 yrs of sabbatical leave for MBA.

I recently got an offer from Bhari logistics. The catch is they recruit only through 3rd party vendor who is Tasc outsourcing.

My current package is 8.3LPA And I am being offered 14LPA at Bhari (Tasc outsourcing). I am nervous to resign from TCS as I don't have a solid information about either bhari logistics or Tasc outsourcing of they are stable company.

Ur suggestions pls ...