February Month Less Salary And Pay Slip At Startup

Hi,
I have joined a new Startup co. in Bangalore on Feb 2nd, march 2017. Before the joining itself, when i asked about the salary, they mentioned there wont be any deductions like PF, insurance, except professional tax.
Total CTC was Rs. 5L per annum and net salary is Rs.41667.
I got the salary for February month which is 35,623 only. When i inquire my employer, they says on February month only paid for 28 days only. not full salary. but generally, as far as i inquired my friends in other companies It is a full salary know?
and also they deducter 650 for Professional tax and TDS. I asked for pay slip atleast. and they said, company name is not registered so, cannot give pay slip now.
What i can do now? Is this the way it works? please guide me..

Hi,
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.
Regards,
Gaurav Waikar