First of all you should get the full salary for the month of Feb. While calculating the salary for any month it is being calculated as Total Salary/month days*number of present days. Hence in your case it should have been calculated as 41667/28*27 (27 since you joined on 2nd Feb). In case of PT you check the applicable rates of PT in your state.
Further, in case you are not getting salary slip for company, ask them to provide the salary working.
7th March 2017 From India, Mumbai