Gst return for manpower supply work

procedure for filling of returns are same irrespective of supply of goods or services. Being you are running man power supply service , then. it require you to file Gstr1 where u have to submit the invoice wise details alongwith relevant taxes by due date which is generally 1o of next month
validate Gst 2 which is available on. ur site from day 11 of next month and last date is 15 to validate and submit the same with dept and last
Gstr3 summary of output tax and input credit and balance paid through banking system. This cycle will be repeated for every month.
Now for short term perios of 6 months. every person require to submit gstr 3b which is summary of tax liability input credit and balance payments

pls note in your business important things to focus
1. place of supply and invoicing
2. centralised agreement with clients
3. reimburesement of expenses if any and their gst implication may be in rcm
4. Itc credit availability against reimbursement to client