Recording Transaction after Gateway charges

Recording Transaction after Gateway charges

Hi, 

Requesting assistance in recording a transaction. 

I had sent an invoice of Rs.3500 to the customer. He used a PG to pay the amount. The PG had deducted 2% fees (Rs.70) and Tax (Rs.9) and sent the balance (Rs. 3421) to my bank account. 

How shall I record the transactions in Zoho Books?

1. Invoice is raised for the full amount. Rs.3500
2. PG is automatically deducting it charges. I am not paying them. So not sure if I can enter them as Expenses as that amount is not in my bank statement. 
3. So while recording payments should I mention as Rs.3500 against the invoice paid by customer or Rs.3421 since that's the amount I received from PG and from whom?
4. How to record that transaction fees and tax?
5. How will auto-reconciliation work since Invoice has Rs.3500 and Bank statement ll have Rs.3421?

Kindly help. Looking forward. 

Warm Regards