Free HRM Software with one month subscription for startup?

Dear Sir/Mam, I need to use HRM Software with one month subscription, this is a startup company, so kindly please help me.

Hi,
If you are looking for a free HR & Payroll software, I'd recommend you to check out Kredily.
Kredily is India's only free cloud HR & Payroll software and has been trusted by 1000+ companies all over the country. Packed with all the necessary features to track your employee attendance, manage leaves, employee documents and run your monthly payroll.
Thank you.

Dear Sir, I need to use HR Payroll Software with one month subscription, this is for startup a new Manufacturing plant unit with approx 100 employees , so kindly please help us our organisation

Check out HRAPP. A 360-degree HR Management Platform. HRAPP is India’s most sought Free HRMS and Payroll software (https://hrapp.in) and has been trusted by 800+ companies. A few benefits of using HRAPP Payroll software are.
Hiring made easy and efficient.
With HRAPP, achieve 10X more productivity and efficiency by managing all data related to Recruitment at one place. Keep track of the complete life cycle of candidates, right from identifying to hiring. Record the results and efficiency of all the recruitment campaigns.HRAPP also allows you to manage candidates’ details like contact information, personal details, resume and cover letter on a centralized database. Keep them informed of their application status by sending automated messages.
Employee Self Service
Employees can easily access and update their Personal Information, apply for Leaves, check the Leave Approval status, plan future leaves and view the Payment and Payslip summaries.
Track and monitor productivity accurately
Managing and tracking attendance may become cumbersome, especially if your organization has a Field Sales department. HRAPP comes with a number of useful features to make attendance tracking a cakewalk.
Create optimal rosters. No confusions. No stress.
Scheduling shifts may seem like the most complicated process. Coordinating with all the employees, taking account of their leaves and preferences to organize shifts not only consumes a lot of your time but a lot of your energy too. Shew your worries off as HRAPP lets you plan optimal rosters to enable maximum productivity.
Managing Taxation and Compliance has never been this easy
Payroll needn’t be complicated any more
Streamline the complete payroll process with the simple, effective and user-friendly features of HRAPP. Payroll is a complicated process that involves the precise calculation of working hours, leaves, commissions and allowances which might overwhelm you and drain your energy. With HRAPP, simplify and manage all payroll related tasks effortlessly on a single, intuitive platform.

I got best payroll software - https://www.youtube.com/watch?v=-fgERcgJVjY&t=21s