Satbir Singh is a name potentially associated with multiple individuals, making it challenging to provide a definitive biography without further context. To offer a concise biography, it's necessary to specify which Satbir Singh is of interest. Without this clarification, the information would be too general and potentially inaccurate. A biographical summary requires details such as date of birth, place of birth, significant achievements, and relevant affiliations. If "Satbir Singh" is a common name, providing additional information, such as profession, location, or any other distinguishing characteristic, would significantly aid in narrowing down the search and ensuring the biographical information provided is accurate and relevant to your query.