Hi Yusi,
Thanks for your reply.
Yeah, had an idea about the answer but wasn't sure..so asked. Was watching market depth and never saw TBQ or TSQ go down. As they are orders to be executed they should sometimes go down too as traders cancel their orders, but they never did. It was a high volume stock with news and in morning session, so even if it did happen maybe i missed it. Checked with a low volume stock and they were going up and down.
Want to know more about how order placement and other small things work in indian market..can you suggest some source ?
Regards