I have two Google Webmaster account and submitted single website in both webmaster tool so its effects on website rank or not?
Thanks for sugasation Mr. Pream I am not asking that it will help me to improve website rank I asked that if i have two webmaster a/c for a same website it is negative for web site rank position.
No, it's not negative, but why would you want to do it? You can add it in one account and give other users access: https://support.google.com/webmasters/bin/answer.py?hl=en&answer=2453966