DP to margin - which brokers have the best facility ?

#1
can you please confirm on this one please?

The plan is to purchase LIQUIDBEES and have them pledged for margin.

If this is not up yet, i can wait. I do not wish to end up not being able to pledge.
Actually, this procedure is really very easy in Sharekhan. It is a single click procedure during the market hours and the money is instantly credited. Just use the "DP to margin" option. Reverting it (margin to DP) is also instantaneous.

This set me thinking, which brokers offer the easiest route to pledging the shares in your DP ? I only have Sharekhan's experience.