due to increase of bandwidth and network latency

change the network design.thats why decrease the responce 
time.

Aarthi,
if the script ws running correctly and response Time(RT) 
was 2.5 secs tht time. After a fix RT increased to 5 secs. 
then wt i sugguest you to run d same script with a goal 
oriented scenario. keep same no. of Vusers and rest of the 
settings. limits the RT to 2.5 secs max. During running of 
d you'll get the msg tht limit is about to exceed. for this 
wht you do tht u instruct d controller to continue scenario 
execution if the limits exceed in scenario configuration. 
Now run the scenario, and monitor tht at what point during 
the script execution RT exceeded d limits. U'll b able to 
get the exact answer of ur problem. u'll b able to knw tht 
is d prblm in app server or database server?

Satisfied ot not?
plz respond

Thnks
rohit