Any IAS officer who didn't do that well in college ?

To become IAS officer you should have decent score in UPSC Entrance Exam, As per teh eligibility you should be only Graduate in any of the field. If you didn't get good result in Graduation programme then there is no issue you need to hard work for IAS exam to get cleared. Here are some preparation tips you can follow for the preparation:
You will be tested through an objective paper in general studies.
Be thorough with current affairs, if you are preparing from home then use ARIHANT magazine or any other famous current affairs monthly and memorise important points from it or attempt the MCQs given there. You must use pratiyogita darpan (english version) for descriptive answers or specific studies. Make notes in a notebook about whatever you read and then you will be on the right track. For language paper use class 10-12 books(level is matriculation ).
Read THE HINDU or any other reputed newspaper and always go through the editorial column and make notes. For history civics and geography use NCERT of class 8-12.
Be sure to do topic specific studies for important events like budget, census (questions are sure to be asked), any important socio-political event etc. Read political science books of NCERT properly. Study about economics, new events regarding technology, science etc.

NCERT books play a very important role for the exam so firstly prefer them.

Interview
It is all about how much you know your subject, yourself, your interests, your family,your district and everything you have mentioned in BIO data.

In case you have any other query then let me know.

Good Luck!

Unfortunately you may or maynot find right candidate having above credentials on Platform.

However it is possible that students not having great scores in graduation but having excellent scores in UPSC Cs exams for IAS Officer Grade.

Incase you are seeking preparation strategy then check below.

https://competition.careers360.com/articles/upsc-civil-services-examination-expert-tips-crack-prelims-in-6-months