Definition: In this task you are given a list of triplets of the form [subject, predicate, object] and the output should be a question based on the triplets but with the subject and/or object replaced with blanks (represented using two or more consecutive underscores). Triplet values encompassed in [*] are special tokens that can be replaced with synonyms. The objective is to construct a question in a manner that (a) captures the facts specified in at least one of the triplets, and (b) ideally contains a limited number of blanks such that it is a well-formed question that is easy to answer. A blank can represent a single word or a phrase.
Input: [['Mumbai', 'STATE/TERRITORY', 'Maharashtra'], ['Mumbai', 'RANK', '1'], ['1', 'POPULATION_(2001)', '11,978,450'], ['1', '2011_POPULATION', '12,478,447']]

Mumbai, in _____, is the most populous city in india, with population of _____2,478,447 in 2011, and 11,978,450 in 2001.