MUMBAI, July 21 -- The Mumbai police on Monday detained over 300 people, including students, who had gathered near Chaityabhoomi in Dadar to protest the forcible removal of activist Sonam Wangchuk from a hunger strike in Delhi and demand the resignation of Union education minister Dharmendra Pradhan over recent examination paper leaks. The detentions came on a day when the Delhi police used tear gas and lathis to disperse thousands of protestors attempting to march from Jantar Mantar to Parliament as part of a nationwide agitation led by the youth-led Cockroach Janata Party (CJP). Wangchuk, who had been on a three-week hunger strike over alleged exam irregularities and education reforms, was taken to hospital by Delhi Police on Saturday, triggering protests across several cities. The agitation gathered momentum in Mumbai on Sunday after thousands assembled outside Shivaji Park, where Shiv Sena (UBT) chief Uddhav Thackeray expressed solidarity with Wangchuk and called for a nationwide agitation against the Centre. On Monday, around 3 pm, protesters again began assembling near Chaityabhoomi in Dadar West, prompting police to launch preventive detentions. The protestors, mostly young men and women, raised slogans against the Centre, Pradhan and Prime Minister Narendra Modi, such as "Chaiwala Chor Hai", "Jab jab Modi darta hai, police ko aage karta hai", "Inquilab Zindabad" and "Vante Mataram". "We picked up people, especially those wearing black clothes as a mark of protest against the government. The people who were picked up were taken to Dadar, Mahim and Sion police stations. We took their names, mobile numbers and addresses and allowed them to leave," said a police officer. Among those detained was Sameer, a teacher who declined to reveal his surname. "Today, we were peacefully protesting, yet we were detained. The government doesn't want anybody to protest against it. They have commercialised education and slaughtered the education system," he said. Misaba, a student from Mumbai Central, said, "The government has proved useless. It is not accepting or taking any responsibility. They don't want any protests against them and are forcefully detaining people with the help of the police. Students' future is at stake and they are not accepting mistakes." A senior police officer said no permission had been granted for any protest at Chaityabhoomi. "Accordingly, the Shivaji Park police station denied permission for today's protest by supporters of the Shetkari Kamgar Paksha, CPI(M) and CJP at Chaityabhoomi. The process of registering an FIR against those who participated in the protest is underway," the officer said. Police also registered a case against an unidentified Shiv Sena (UBT) leader and two others in connection with Sunday's protest at Shivaji Park, alleging they had blocked traffic and encouraged people to participate in an unlawful assembly Protests were also held in Thane, where workers of the Nationalist Congress Party (Sharadchandra Pawar), Shiv Sena (UBT), the Communist Party of India and student groups demonstrated outside the collector's office. Apart from demanding the resignation of Pradhan and expressing solidarity with Wangchuk, the students also staged a nukkad natak (street play) criticising the central government....