Jagadish_C - When using those 5 buttons on the left-back of the HS10, note that you don't need to use the Control Dial to change settings - you can use the Left-Right Arrows on the 4-way pad. That can be quicker-easier when using the EVF with the camera up to your eye.
It's essential to change the EVF/LCD rate from the factory default of 30fps to 60fps - or the EVF will look dull-dim and "grainy".
That won't use excessive battery power, if you've turned off the VERY annoying EVF/LCD Auto Switch - maybe the biggest power-waster in the camera. Also turn off the 1.5/3.0 second Review function, to speed-up time between shots. You can see your last shot(s) instantly with the ">" button, bottom-right on the camera back - including with EVF.
When using Continuous, shots in the burst will show there as a tiny "video" in the bottom right of the screen. Press the Down-Arrow on the 4-way pad to stop that - then Left-Right Arrows to check the individual shots in the burst.
The HS10 has a reputation as a "battery-hog" - I use Sanyo Eneloops and get well over 400 shots without Flash or Video. (The last set used did 437.) Eneloops are also sold "re-branded" in some places. Look for 'low-self-discharge' batteries.
Eneloops do come charged, ready to use, but they aren't at their best until after 3-4 charge-discharge cycles. While NiMH batteries aren't meant to "need" full-discharging before recharging, the HS10 does have a full-discharge function. I use that about each third recharge cycle.
I keep my 5 sets of Eneloops in their sets of 4, and use them in the HS10, Canon SX10, and old Fuji S2000HD - now carry-bag pocket camera.
In the SX10 they get 550-600 shots, without Flash or Video.
Using AA-Alkalines in the HS10 gets about 280-300 shots without Flash or Video.