Dear Shilpa,
No human being would ever want to work in an organisation where the systems and policies are not right.
However, when you say this, are you sure you are not just pointing fingers and blaming to find a better place to work ? Your role in the company may not have allowed you to change any thing there. Did you think through why such a system had formed and if at all any correction could be made ? My apologies as I request this only to help you analyse the situation and not find a custom-fit answer for your next interview.
Now that you have come out the system, let us for a moment imagine, you find a job in a firm bearing similarities to your ex-employer. Would you change your job again or understand why things work that way?
Often , seeing the bigger picture and then finding a foothold to the changes that you can bring in, can create 'the best place to work' . However, thats an ideal situation.
We have our limits to adjust with a toxic situation . As we work through levels , these situations will eventually cease to have any impact on us , as we can see through them.
Think of the problems that were there with your ex-employer, from a point of view of a mid-level manager who needs to deliver , but may not have the authority to change.
I strongly believe , whatever happens , happens for the best. You have left the job for the right reason and this experience have helped you build your professional acumen and maturity.
The interviewer would only be interested in your skills and how easily can you deliver on the duties you are going to be hired for . Hence, during the interview remain focussed on your skills and what more would you want to learn, with in span of opportunities with the new employer. Stay focussed on growth and learning. Your answer would be honest, if only you have brainstormed through your last situation . Remain focussed not just on problem but solution-orientation . Wish you all the best !