Poorna is known to her fans in the Tamil film industry by the name Shamna Kasim.
The evidence provided does not contain detailed information about Poorna’s background or career. However, it does mention that she is an actress known by the name Poorna to her fans in the Tamil film industry.
The evidence does not provide any further information about Poorna’s work or achievements in the film industry. It only mentions her name and her association with the Tamil film industry.
In conclusion, based on the available evidence, Poorna is known to her fans in the Tamil film industry by the name Shamna Kasim.