(i) Saheb was a young boy who lived in the author's neighborhood and scavenged for scraps in the garbage dumps to find anything valuable, including gold.
(ii) The expression ‘scrounging for gold’ refers to Saheb searching through garbage dumps in hopes of finding valuable items, though he is actually looking for any material that can be used or sold.
(iii) Saheb came from Dhaka, which is located in Bangladesh. His home was amidst green fields there.
(iv) The author's advice to Saheb to go to school sounds hollow because Saheb has no access to a school in his neighborhood, making the suggestion unrealistic.
(v) The expression indicates that Saheb wants to go to school, but he is waiting for a school to be built in his neighborhood.
(vi) Saheb's family left their home because storms had destroyed their fields and homes, leaving them with no other choice but to migrate in search of a better life in the city.