How to introduce HR Core practices in a start up Firm.

I have recently joined a start up as an HR. By god's grace bestowed with a sensible management and an efficient team of 12 employees. We are expanding the teamsize to 25 by Jan'19.
Employees are content motivated . So now , how do i implement HR . What all need to be introduced ? As of now we follow
i) Attendance
ii) consolidated leave 22 days annually
iii) Recognition : Employee of the month
iv) continual monitoring of employee on targets(SET vs ACHEIVED)
v)issuing Offer / appointment letter.
vi) Maintaing employee records( relevant documents)
These are the basic things set. What next ? How can i enhance it further ? Please do suggest.

Dear friend,
The most important thing about HR is to maintain records of their performance. But then have you defined measures of performance scientifically? For this have you identified the various ratios and costs associated with your business? The most important costs are Cost of Quality and Cost of Poor Quality (COPQ). If you measure those accurately, you will come know where your HR Management practices stand.
Thanks,
Dinesh Divekar

I am also in the same position. Our company is 30 years old. All basic HR work is done by the finance department. This year I have taken the responsibility to set up a HR department for 50 nos employees. I have already initiated the following:-
1. All Basic task written above
2. KRA and Appraisal System
Now I want to initiate work enforcement plan. Please suggest me how to do.

1) Basic Amenities & Welfare
2) Performance Appraisal - For confirmation of services and also annual evaluation to release increments
3) Late coming policy
4) Maintain harmonious relations
5) Training & Development

Please begin with Creating aSafe andSecure Workplace Where No Woman shall BeSubjected to Sexual Harassment by Complying with All the Provisions of Sexual Harassment of Women atWorkplace (Prevention, Prohibition & Redressal) Act 2013 and the Rules framed thereunder particulary;
1. Section-4 (Constuting Internal Committee with Min 4 Members (3 from amongst Employee + I Non-Employee-Outsider;
2.Secrion-19 ( Duties of Employer);
3. Section-21 (Filing ofAnnual Report for Calendar Year 2018 under Signature of I C Presiding
Officer with a Copy to her Employer;
4. Section-22, (Employer to Incorporate IC PO's Annual Report Data/Details in Company's
Annual Report; Board of Directors to Furnish Declaration under Amended Companies
(Accounts) Rules 2014; Companies Act Reg Non-Finacial Disclosures; etc
Consul Kritarth Team if Needed
Kritar5th Team
9 Dec 2018

Dear Mr.krishnakumar,
Can you suggest me handbook for HR management. What is late coming policy. Please elaborate.