Before dispersing, several protesters spat and stomped on the cow's head. The cow is considered sacred among Hindus.
Addressing the crowd, Section 23 action committee deputy chair Ibrahim Sabri said: "If there is blood, you (the state government) will be responsible if you are adamant about building the temple."
"This is a warning. Relocate the temple to Section 22. This cow is a present to the state government. This is a gift from us," he added.
The protesters also carried several banners which among others read 'Take Beer' (mocking PAS' rallying cry of 'Takbir') and 'Illegal temples are very small, but once relocated, they are as big as Putrajaya'.
The crowd gathered for about 15 minutes at the main entrance of the state secretariat building under the watch of more than a dozen police personnel.
seals: "under the watch of more than a dozen police personnel." ?? So police gave protection????
Prime Minister Najib Abdul Razak is outraged over this afternoon's 'cow head' protest in Shah Alam, said Human Resources Minister Dr S Subramaniam.
"The prime minister was very upset. He promised to look into the problem and nip it in the bud," he said.
"Some 15 minutes later, the prime minister called back and said that he had spoken to Inspector-General of Police (Musa Hassan) and instructed him to take immediate action," he added.
In a statement earlier, Subramaniam said incidents such as these hinder the 1Malaysia concept being promoted by the premier and serve to only 'turn back the clock'.
The protesters had marched from the state mosque to the state secretariat building.
"The group took their protest to the extreme by bringing a severed cow's head which clearly is a sign of disrespect to the Hindu community," Subramaniam said.
"It has emotionally angered the Hindus and if it is not controlled from the beginning, it may create unnecessary racial tension," he warned.
Samy Vellu: This is intolerable
"It was very uncivilised and brutish...and the group had just come after attending their (Friday) prayers," the DAP leader said.
Also seeing red over the incident was MIC president S Samy Vellu, who called it an "intolerable" act carried out by an "extremist group."
"The cow is a sacred animal of the Hindus, and for this group to resort to such action, is intolerable and tantamount to challenging the freedom of religion as enshrined in the Malaysian constitution.
"We must not allow anyone to challenge or ridicule any religion in this country. I am worried that this action may lead to retaliation from the Hindu community. However, I wish to urge the Hindus especially to be calm and let the authorities deal with it," he added.
Samy Vellu called on the government and the police to take action against the organisers of this protest.
They must be punished according to the law for endangering racial harmony in this country, he added.
'Charge them in court'
"It is a very shameful and disgraceful act and they do not seem to have any feelings for the sentiments of the Hindu community," said the wing's chief T Mohan.
"We strongly condemn their actions and call on the authorities to take immediate action. There are proper channels to express one's views but ridiculing the Hindu religion reflects the shallow minds of the protesters," he added.
Malaysian Indian United Party president S Nallakaruppan also similarly condemned the act.
"I fear that this kind of intolerance and act of stupidity will only cause more rift among the Malaysians. This is a bad move by the villagers," he said.
Human Rights Party leader P Uthayakumar was disappointed that the police did not arrest those involved in the protest.
He said the Attorney-General's Chambers should initiate criminal proceedings and charge them under Sections 298 and 298 (A) of the Penal Code read together with Article 11 of the Federal Constitution.
Section 298 concerns the offence of uttering words etc with the deliberate intent to wound religious feelings while Section 298 (A) is related to the offence of causing disharmony.
He urged the Selangor government as well as the police not to tolerate this sort of behaviour and to take stern action against the protesters.
"How can a temple disturb the peace of these people?
"Things can become really ugly if we start raising other questions," he said.
seals: This is a real situation to create a disharmony and tension to break the 1MALAYSIA. And the Police just watched? WOW police.....!!!! Where is ISA now?