Thanks for the suggestions. The second suggestion worked for me using (*CONTROL_IMPLICIT_DYNAMICS).  

Just a follow-up query. It  has been mentioned in implicit guideline card you sent as "

GAMMA,BETA = 0.60,0.38 to invoke numerical damping in dynamic analysis."

So, does these values need to be kept fixed or I need to do some sensitivity analysis to fix a value? Are there any guidelines to select these two Newmark constant values?