Need A Proper Attendance Data Record Guidance For Casual/permanent Employees Located At Different Locations

Hello Everyone
I just got appointed in a Pvt Ltd company where there are around 350 employees working. But I am very confused with the attendance record here. As...
First thing there is one head office where - Attendance machine is installed and around 30% employee punch attendance which includes Permanent and casual both rest employees sign on the attendance sheet kept at Guard which again includes casual and permanent employees
Second there are 7 branches cum outlets in different cities where machines are installed and data is received in first week of every month which again includes casual and permanent employees.
Now its all messed up for me. I want to make a proper system for this. However I tried with an Excel sheet.
I also want to know is it necessary to maintain Attendance Register for all the employees or I can keep only for Permanent employees ?

you can get biometric attendance machines installed at each location
and you can get their attendance in your office
you can contact 7350643434 for biometric system
www.securima.com

Just check with the old people and you might find out that the employees signing have not been registered at all on the Bio meteric.
Make a different code or permenet and casual workers so that the dowload in excel can be easy to manage.
Link the branches attendance machine to your computer so that you can have those reports also. This is possible through a fixed IP address
Also if you are maintaining the computerised attendance, the register is not necessary, but you have to give the necessary intimation to the labour office.
Hope this will help you to solve the problem
Regards,
Ashutosh Thakre

Thanks Ashutosh ji, I am finding out whether other locations' machines can also be operated through my computer to generate reports for branches.
I am already in the process of re-coding the employee code to make my excel sheets easier.
That will be a huge relax if I am not supposed to maintain attendance register, I will intimate in the Labor office.
Thanks everyone.