Hi jenishgandhi-liv!
It's lovely to see you posting here today! Let me help you record your transactions.
The £100 cash you receive every day can be recorded as a bank deposit in your petty cash account. Then, when it reaches £1000 and you deposit it into your actual bank account, you can record a bank transfer. Transfer £1000 from your petty cash to your checquing or savings account.
Please don't hesitate to go back to this thread if you have more questions about recording your transactions. Take care!