The main accused to be slapped with sedition charges include Bajrang Dal local convenor Yogesh Raj and BJP youth wing leader Shikhar Agarwal.
Sharma was addressing a public gathering on Thursday in Bhajan Lal temple in the city.
A total of 38 people, including local BJP and Bajrang Dal leaders, were arrested for the violence that broke out in Siyana tehsil of Bulandshahr on December 3.
On December 3, police inspector Subodh Kumar was killed in the violence which took place after carcasses of 25 cattle were found in the forests close to a police station.
The Uttar Pradesh police had on Sunday reportedly recovered the mobile phone of Subodh Kumar from the house of Prashant Natt.
A mobile phone belonging to inspector Subodh Kumar who died in mob violence on December 3 in Bulandshahr, has been traced by the police.
One of the prime accused in the case, BJP's Yuva Morcha leader Shikhar Agarwal was on January 10 arrested by the police from Hapur.
Cattle carcasses were found strewn in the fields outside village Mahaw in Siyana on December 3 after which a mob went on the rampage, attacking the local Chingrawathi police post.
Raj, a leader of the Hindutva outfit, was arrested on January 3 for his alleged role in the mob violence that killed a police officer and a local.
He was absconding since he was accused of instigating mob against the police in Bulandshahr on December 3 in which inspector Subodh Kumar Singh and a local Sumit Kumar were killed.
Yogesh, was on run for the past one month after violence hit the Siayana area of the district, after cow carcass were allegedly found from an agricultural filed on December 3.
Kalua told police that on December 3, he was felling a tree to block a road, when the inspector stopped him from doing so, he attacked him with an axe.
Asked if he thought there was any political pressure on police in this case, he reposed his faith in the investigators and said he hoped to get justice.
Addressing the media at the Press Club here, members of the NCHRO claimed that the violence was a "planted incident" to create unrest in the area and elsewhere "in the name of cow".
Bulandshahr violence: Slain police officer was attacked with stones, axe before being shot, claim cops
Prashant Natt, the suspected killer of Subodh Kumar Singh, disclosed that the mob attacked Inspector Singh with stones while he was trying to pacify them following which he got badly injured.