Can Our Politicians Be Rated?

In India listed companies are rated by various agencies like CRISIL,ICRA, CARE etc. These agencies scrutinize the firms on various aspects, like their management, their style of work or their capital base.The firms naturally are expected to perform well in these parameters failing which they attract negative publicity which may drive away investments and ultimately lead to their downfall. So frims are made accountable for the business decisions and have to perform well inorder to maintain or raise their ratings.
I was wondering whether such a system of accountability can be applied to our poilitical system.I agree that citizens are the ones who must appoint the politicians.But sometimes citizens can err in choosing a right candidate.Most people have a preference for a particular party beacuse they feel its ideologies are matching their own and that there have been many politicians in that party who have really worked for the people's betterment. This can be termed as ignorant quite simply because the person whom you are voting might not have the calibre or the intellect to carry forward the baton which his former party workers had carried.
Why can't we have an autonomous body which can ensure that the political parties are kept on their toes by constantly updating their popularity charts.Rating them on different parameters namely economics, poverty alleviation, price stability, crime rates etc. Such an initiative should be backed by an act of parliament which will give the agency an autonomy to carry out its research and analysis. To make the agency transparent, distinguished personalities as well as the common man should be appointed in its core committe.To keep it stain free politicians and their clan must not be allowed to participate in its proceedings.Being an agency of the people,by the people and for the people it should be well supported by the political parties by voluntarily disclosing their achievements and their shortfalls.
All this will ensure that whenever a person visits the polling booth to exercse his/her franchise they are aware of the background of the candidate,his qualification and experience.Media has a great role to play in this, by updating people about the performance of politicians and parties on a weekly basis it can truely be it's worth.Debates can be arranged among party heads based on the findings of this agency and this will definitley ensure that the wheels of democracy are moving in the right direction.
Hope my idea materialises and if not,atleast makes the people reading this article aware of their duty to do their homework before they caste their vote.
JAI HIND!