I'm unsure whether I should file TCS or TDS. How can I determine which tax document is required for my situation?

Determining whether you should file TCS (Tax Collected at Source) or TDS (Tax Deducted at Source) is about understanding your role, below points will help you to determine your role.
 Scenario 1 : For TDS (Tax Deducted at Source):
 Point Number 1 : You Deduct Tax: If you pay money to someone and you have to take out tax from that payment before giving it to them, you're a Deductor. This means you need to file TDS returns. For examples are employers, businesses, or people who pay salaries, interest, rent, or fees.
 Point Number 2 :Types of Payments: TDS applies to payments like salaries, interest, rent, and fees. If you make these payments and need to take out tax, you have to file TDS returns.
 Point Number 3 :Get a TAN Number: If you're a deductor, you need something called a TAN or Tax Deduction and Collection Account Number. You use this to file TDS returns.
 Scenario 2 : In other hands For TCS (Tax Collected at Source):
 Point Number 1 :You Collect Tax: If you sell stuff or provide services and you collect tax from the person buying, you're a collector. You must file TCS returns. 
 Point Number 2 :Types of Sales: TCS usually applies to sales of certain items, like specific goods, minerals, scrap, and services mentioned in the tax rules. If you do these kinds of sales and have to collect tax, file TCS returns.
 Point Number 3 :Get a TAN Number: Just like with TDS, if you're a collector, you need a TAN or Tax Deduction and Collection Account Number for filing TCS returns.
 Sometimes, you might need to follow rules for both TDS and TCS, depending on what you do. The main thing is to figure out your role in this matter – whether you're taking out tax or collecting it, and then make sure you have the right TAN for your job.
 If you're not sure what to do, talk to a tax expert or your local tax authorities. Tax rules can be tricky, and it's important to get it right to avoid problems.