The internet provides you with a great opportunity of finding information about people. It is however recommended that you cross check any information that you find on a single website with a few others so that you can verify its accuracy. There are many reasons why you would want to investigate about individuals on the internet.
Whether you are looking to pursue your business goals with them or you have to research about someone popular for academic reasons, you will be able to accomplish it all on the internet. However, the vast majority of websites nay not be reliable as far as accuracy of information relating to individuals is concerned. This is the reason that you have to be sure that the information that you are getting about someone is accurate and to the point.
You might for example be interested in researching about veteran Amit Raizada for which you will come across pages like https://www.democraticunderground.org/12541200 that carry news items related to this person. The main thing for you to consider would be who publishes information on specific websites about people.
If you can find information that is published by professional investigative journalists then you can at least be satisfied that any information that is being published can be trusted for accuracy though not a 100%.