Dear nitinji,
Its difficult to arrive at bottom. If you see weekly chart the volumes on past three bar coming down. It means selling slowly down. If you notice past two weeks, excluding current one, prices are just closed at same level. It means there is some accumulation going on, with 'weak' holders getting wiped out.
On the contrary, if you see daily charts, volume is rising since past four days with significant bar spread, implying lots of selling going on. And just focus on todays bar under development it is again high volume on, and its greater than yesterdays as of now, so it requires just a good close above yesterdays 206 levels may be 2-3% and with already increasing volume, it will imply arrest of immediate downtrend.