KKM members Ramesh Gaychor and Sagar Gorkhe were apprehended after they surrendered, an ATS official said.
The two have been booked under relevant sections of the Unlawful Activities (Prevention) Act, the official said.
A month ago, two KKM members, identified as Sheetal Sathe (27) and Sachin Mali (30), had surrendered outside the state assembly premises.
In a crackdown conducted in April 2011, the ATS had arrested Angela Sontakke (42), an alleged Maoist and wife of Milind Teltumbde, allegedly the secretary of the Communist Party of India-Maoist's Maharashtra committee, and also recovered Rs 1.54 lakh in her possession from the neighbouring Thane district, while her alleged aide Sushma Ramteke (27) was caught in Pune.
Allegedly, Sontakke also worked as secretary of the so-called 'Golden Corridor Committee' formed in February 2008 to spread Maoist ideology among students and labourers.