Security was heightened in Amritsar as Hindu activists called for a shutdown in Punjab to protest the killing of Hindu Sangharsh Sena district president Vipan Sharma, Hindustan Times reported on Tuesday. The shutdown call comes on a day when the Shiromani Gurudwara Parbandhak Committee is observing the death anniversary of former Prime Minister Indira Gandhi’s assassin, Beant Singh.

Amritsar Police formed a three-member Special Investigation Team to probe Sharma’s death, ANI reported.

Sharma was shot dead by two unidentified bike-borne men at Bharatnagar in Amritsar on Monday. “There were around 15 injury marks on the deceased’s [Sharma’s] body, including eight bullet marks,” Escort Hospital’s director Dr HP Singh, told PTI on Monday.

The Hindu Sangharsh Committee and the Shiv Sena Hindustan have called for a bandh to protest against his killing. During protests, several Hindu activists raised anti-Khalistan slogans, according to Hindustan Times.

Meanwhile, President Ram Nath Kovind, Vice President Venkaiah Naidu and Prime Minister Narendra Modi on Tuesday paid tribute to Indira Gandhi on her 33rd death anniversary. Former Prime Minister Manmohan Singh and Congress Vice President Rahul Gandhi paid tributes to Indira Gandhi at Shakti Sthal in New Delhi.