Tax implication on payment to freelancers

I am a freelance web professional and in the course of running my business, I have to make certain payments to national and international freelancers. 

Payments to Indian Freelancers are paid primarily through cheque or NEFT. 

For international Freelancers, payment is done in USD using Credit Card through online freelancing portals like elance and upwork. 

Are there any tax implications on such payments made by me to these freelancers? I show them as Freelancer Payments in my P/L account.

Kindly provide your valuable insights on this and advise if such transactions need any special treatment while filing IT Return

Many thanks