Hi,
While from the India Income Tax perspective the services would most likely fall within the definition of FTS. However, you have an option to choose the benefit of tax treaty between India and USA which has less stringent definition of FTS and TDS would be applicable @10% if freelancers have pan in India. otherwise, it will be 20%.
As per the tax treaty between India and USA, the services would fall within the definition of FTS only if the services are of such a nature that the knowledge will be made available to the recipient of the services. We need to understand the services in detail to conclude whether knowledge is made available or not. Assuming it doesn't fit within the definition of FTS, only form 15CA would be applicable and you need to get some forms and declaration from the freelancers. further, no tds will be required in this case.