Although yesterday's cross-inspired rebound after the brief but sharp fall to 88.59 suggests erratic decline from 90.79 has formed a low there and consolidation with mild upside bias is seen for gain towards 90.00 (yesterday's high), a break above 90.35 is needed to signal recent upmove from 87.10 has resumed for re-test of 90.79 later.  
On the downside, below yesterday's low at 88.59 would yield another corrective fall to 88.00/10 before prospect of a recovery.