Ewaybill for export

Hello,

I am not clear about export ewaybill.

Lets assume I have prepared export invoice with C&F value 10000$ of which 1000$  is ocean freight part. So FOB will be 9000.

Assuming exchange rate 68. What value should I mention in Ewaybill? 

(1) 10,000 $ * 68 = Rs 6,80,000 or

(2) 9,000 $* 68 = Rs 6,12,000?

Also, if the shipping bill FOB value will have slightly different amount, say 100 rupees. Will this create issue in matching?

Kindly assist. Thanks in advance