[Feature] PPF(Public Provident Fund) Calculator

[filza2112]

Are you adding a new feature?

• YES
• NO

Are you enhancing the old feature?

• YES
• NO

Is your feature request related to a problem?

• YES
• NO

Describe your feature/enhancement.

PPF calculator to help small investors and government employees manage their Investments

Can you add the feature by yourself?

• YES
• NO

Additional Information

• I will perform all the calculations in the function.py file present in helpers folder
• I will create the endpoint ppf_calculator in the main.py file and return the required result in a proper format
• I will update the ENPOINTS.md properly

[github-actions]

👋 @filza2112

Thank you for raising an issue. We will investigate into the matter and get back to you as soon as possible.

Please make sure you have given us as much context as possible.

[filza2112]

@ighoshsubho please assign this to me

[github-actions]

Hello @filza2112, thank you for raising an issue. 🙌 I have assigned the issue to you. You can now start working on it. If you encounter any problems, please feel free to connect with us. 👍

[filza2112]

@ighoshsubho please check my PR #458