1. Clone the github repository.
   git clone https://github.com/gauravbasu6/whatsapp-bot.git
   
2. Install Selenium package for python.
   pip install selenium
   
3. Install chromedriver for Google Chrome (geckodriver, if using Firefox)
   Ensure, the driver is in PATH of your system.
   
4. Open the script.py file and make necessary changes.
   (Explanatory comments are included)

There is a sleep timer of 15 seconds, in the script, to scan the QR code on web.whatsapp.com, when the script is run.
time.sleep(15)
Increase it, if required.