Watching the series might drive you to Google the real ending. Here it is:
The scam gained attention after a series of investigations by law enforcement agencies. It was discovered that Telgi and his associates had managed to infiltrate the government systems to the extent that they could produce high-quality counterfeit stamps. The investigation revealed that several government officials and influential individuals were involved in or turned a blind eye to the scam.
Scam 2003 - The Telgi Story (TV Series 2023) - Full cast & crew