The media only reported the differential settlement of the buildings around the subway station along with the sink hole. The houses were tilting from being built without a stake on a sandy ground and had incline of 1/44, grade E of the standards. The dewatering drainage planning and deep drilling caused this issue. The tilted building was not only the issue here but many buildings were tilted towards the subway along the lines. The reinforcement turned the grade E buildings to grade A's in one month.
Change of floor after rise