I know that through 555 timer we can make an Astable multiviberator for generating Pulses or oscillations.Can I generate only four pulses through the 555 timer and then timer turns off automatically? if this is possible then plz send me the circuit which should be added with the 555 timer for generating only four pulses?

 

You could cascade four 555 monostables. the pulse from the first one would trigger the second and so on for your four pulses.

 

Think about a decade counter; such a device could be configured to produce four pulses.

Paste this into falstad.com/circuit (under File>Import):

$ 1 5.0E-6 10.20027730826997 50 5.0 50
163 512 448 656 448 0 10 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5.0 0.0
d 576 416 576 352 1 0.805904783
d 640 416 640 352 1 0.805904783
d 704 416 704 352 1 0.805904783
d 768 416 768 352 1 0.805904783
w 768 352 704 352 0
w 704 352 640 352 0
w 640 352 576 352 0
r 464 352 464 416 0 1000.0
g 464 416 464 432 0
O 464 320 464 288 1
w 464 320 464 352 0
w 832 416 832 384 0
w 880 512 832 512 0
w 800 416 800 352 0
I 880 384 880 512 0 0.5
w 832 384 880 384 0
w 576 352 464 352 0
165 96 112 144 112 2 0.0
w 800 352 800 240 0
t 464 224 432 224 0 1 0.6293180265868561 0.630860167113038 100.0
r 800 224 496 224 0 1000.0
g 432 240 432 256 0
r 432 144 432 80 0 10000.0
w 336 144 224 144 0
w 224 176 272 176 0
w 272 480 512 480 0
c 48 208 48 272 0 1.0E-6 1.663396976264535
r 48 208 48 144 0 1000.0
r 48 144 48 80 0 1000.0
w 48 80 160 80 0
w 96 144 48 144 0
w 96 208 48 208 0
w 96 240 96 208 0
g 48 272 48 288 0
R 48 48 48 16 0 0 40.0 5.0 0.0 0.0 0.5
w 432 144 336 144 0
w 464 224 496 224 0
w 272 480 272 176 0
w 48 48 48 80 0
w 48 48 336 48 0
r 336 48 336 96 0 220.0
s 336 96 336 144 0 1 true
w 336 48 432 48 0
w 432 48 432 80 0
r 432 208 432 144 0 1000.0
w 800 240 800 224 0
o 10 32 0 34 5.0 9.765625E-5 0 -1

I'll leave it up to you to figure out how to stop it pulsing initially when it turns on. The button otherwise controls it.

 

Two timers, one to pulse them, one to control them.

A timer connected to the reset line of a second timer will disable it, just work out the timing.

 

A $2 8 pin microcontroller will easily do this with no other parts. If you need a simple one to work with, try the Picaxe. All you need is the uC and a cheap programming cable that you can make yourself if you want. 3 manuals, a simulator and the easy to use Basic program are all free on their website. They have a very good forum and provide all the help you could want.