Hi Dark,
Can't be placed at the same time if you are using the normal method.
But there is a way around, if you wish to..
Press ctrl + B , it will take you to bulk order entry window...
Here add both your orders, and you can place both of it simultaneously...
What you need to understand though is that, you will be charged margin separately for both the orders.. So if option is at Rs 4, you need to Rs 200 for buying order and if you are writing you need a margin of around Rs 6000 for the selling side...
Hope it clarifies..
Cheers