Ashishda, just a small correction,
1. Grave stone dojis are where there is a High, no low and the mkt closed at open. The ones you have shown does not match the criteria.
http://www.streetauthority.com/terms/doji.asp
2. Inverted Hammer shown around :09 is actually shooting star. Inverted Hammers are formed in a downtrend and are bullish, a shooting star also looks like IH and are formed in a UT thereby signifying Downtrend. THe one you have shown is Shooting Star.
3. Where you have shown "To be covered here", the next two bars are examples of IH and you can see they were bullish or ended DT correctly(although temp. but good signals to cover and short @higher levels or go long)
4. Where you have written "Engulfing Bull in an Uptrend" looks to me as a Bearish Engulfing. I presume the Black bars are -ve closing/bearish/Red bars sorry of not so.
5. I am not convinced about Seperating Lines. The Second Day's Opening must be equal to or close the previous bar. Even if I consider it to be Bearish Seperating line, the existing trend has to be Down, we see a White Candle and next is Black Bar with its open == previous bar's open, where you have pointed "Seperating Lines" we are not in a DT. Ofcource no question of Bullish Seperating Lines coz after it is a Downtrend. This is because Seperating Lines are continuation pattern and must indicate continuation of Trend nor of them qualify.