Shammi was killed by Sikh fundamentalists as he wrote against extremism .
After the death of Navtej Singh , his son Sumit Singh aka Shammi and Shammi 's wife Poonam continued to run the magazine .
Shammi was killed by Sikh fundamentalists as Shammi wrote against extremism .
After the death of Navtej Singh , his son Sumit Singh aka Shammi and Shammi 's wife Poonam continued to run the magazine .