He was nabbed near Manan Dhaam Duhai on Delhi-Meerut Road while he was travelling by a bike without registration number, police said.
Manish told the police that he was on his way from Jhansi to his in-laws house at Dehradun, police said.
Police claimed to have recovered a US made .30 caliber carbine and live cartridges from his possession.
Superintendent of police (rural area) Rakesh Pandey said since the attack on Teotia on August 11, police had been raiding Manish's hideouts and were tracing his location through electronic surveillance and some informers were also giving inputs.
STF has taken Manish to Greater Noida for further interrogation, police said.