Take advantage of former plan to tour India (7)
I believe the answer is:
exploit
'take advantage of' is the definition.
(synonyms)
'former plan to tour india' is the wordplay.
'former' becomes 'ex'.
'plan' becomes 'plot' (plotting is a kind of planning).
'to tour' is an insertion indicator (to tour can mean to go around).
'india' becomes 'i' (phonetic alphabet: alpha, bravo, charlie etc.).
'plot' placed around 'i' is 'ploit'.
'ex'+'ploit'='EXPLOIT'
(Other definitions for exploit that I've seen before include "Fleece?" , "Milk" , "Use to advantage" , "Bunk" , "Heroic achievement" .)