In such type of questions, clues are given regarding comparisons among a set of persons or things with respect to one or more qualities. The candidate is required to analyse the whole information, form a proper ascending / descending sequence and then answer the given questions accordingly.
Pune is bigger than Jhansi, Sitapur is bigger than Chittor.
Raigarh is not as big as Jhansi, but is bigger than Sitapur.
Which is the smallest ?
In terms of size, we have :
Jhansi < Pune, Chittor < Sitapur, Raigarh < Jhansi, Sitapur < Raigarh.
So, the sequence becomes :
Chittor < Sitapur < Raigarh < Jhansi < Pune.
Clearly, Chittor is the smallest.