Sentence:  C. Rajagopan's "The Greater Bombay: A Study in Suburban Ecology" (Bombay: Popular Book depot, 1962) is one study, especially interesting as it was undertaken in the immediate aftermath of the <WSD>annexure</WSD> of Salsette to Bombay and thus offers a contemporary perspective. 
Meaning of the word marked with <WSD> tags:  The process of annexing; annexation.