Form 10BD, period and amount?

An NGO is receiving donations through its website, but the agency managing such donations, transfers the accumulated funds, after deducting taxes and charges, after delay of about a week.
My questions:
1. What shall be the year of receipt in FORM 10B, if donor pays in the last week of March, but the funds are transferred in April?
2. What shall be the amount of donation in FORM 10BD, if donor pays, say 1,000 Rs, but the agency transfers only 800 Rs. after deducting the taxes and charges?
Please note, a Receipt (80G) is automatically issued to the donor on the date the donor pays, and for the full amount of donation.