Index Match Formula won't work

[westend9876]

Hi. Can someone tell me why this formula will not work?

=IF(INDEX($AC$8:$AC$250,MATCH(Y8,$AY$8:$AY$250,0)=INDEX($AL$8:$AL$250,MATCH(Y8,$AY$8:$AY$250,0),"YES","NO")))

Excel says the formula typed contains error.

 

[Debraj]

=IF(INDEX($AC$8:$AC$250,MATCH(Y8,$AY$8:$AY$250,0))=INDEX($AL$8:$AL$250,MATCH(Y8,$AY$8:$AY$250,0)),"YES","NO")

Check closing parenthesis for Index Functions..