@PLAZA sir, i agree with this intentional pumping of rate then severe withdrawal of orders almost like pre planned strategy from such high volumes. Prima facie it does seem like operator game in pre open against interest of retailers by my limited knowledge, although with halving of buy orders the sell orders were also doubled in fear propagating any strategy that was applied there.
On the other hand, given few recent SME listings they have again entered turbulent waters with time in this season.