It has long been the custom in this branch of astrology to consider maps drawn for the time of the entry of the Sun into the cardinal signs: Aries,Cancer,Libra and Capricorn. Of these, the Aries Ingress was by tradition considered the most important and possibly to be thought of as “the map of the year”. Led by Carter astrologers have begun to consider the Capricorn as the prime ingress.
It was Carter who suggested that if the sidereal zodiac were valid, maps for the entry of the Sun into the constellations of Aries,Cancer,Libra and Capricorn would be of importance. This suggestion was followed up by Garth Allen, who in an extensive statistical investigation found that the sidereal ingresses were not only valid but of the highest significance. This opinion has been fully confirmed by other investigators in recent years. Garth eventually arrived at the conclusion that the Capricorn Sidereal Ingress was of primary importance followed in rank by that of Cancer; Aries and Libra, whilst having some significance, could be considered of lesser importance.
Primer of Sidereal Astrology; Cyril Fagan, Roy C. Firebrace
This extensive prelude from Cyril Fagan about the importance of the sidereal Capricorn Ingress is relevant since modern astrologers appear to have forgotten its validity. I take this opportunity to explain the
tragedy using the map of the sidereal Capricorn Ingress at Dhaka.
Notice that (a) the MC [29vi] of the
chart is conjunct the star Alkaid [27vi] (b) Uranus is the fourth house.
Eta (η) Ursa Major, Alkaid, is a brilliant white star on the tail of the Great Bear.
The last star in the Great Bear. Benetnash (Alkaid) means 'hired mourners'. If the influence of this star is exercised, an influence of a Mars-Uranus-Saturn nature is present. Experience has shown that many human lives are to be mourned. Reinhold Ebertin made a survey of this fixed star covering centuries when associated with transits of the major planets over this degree. The results have been recorded in the 40th yearbook for Cosmobiological Research 1969. In accordance with adopted belief of ancient times, this fixed star is supposed to be bound up with the realm of the dead and is therefore associated with death and mourning. In an important position in a mundane map, Benetnash will claim human lives in calamities such as mine accidents, collapse of houses and bridges, mountain slides, earth tremors and catastrophes caused by weather. [Fixed Stars and Their Interpretation, Elsbeth Ebertin, 1928, no.46, p.57, under the name Benetnash]
H.S. Green gives the following interpretation for Uranus in the fourth house:
If afflicted trouble among the workers, discontent, strikes, ill-feeling between master and man or between the upper classes and the masses, accidents in mines, fall of buildings, explosions.
The T-square with Uranus at the apex has Venus [6th and 11th ruler] ; Pluto [12th ruler] opposite TNPs Kronos, Hades. I once again urge readers to look at the meanings of the houses from the excellent reference below.
Sixth House: Because of its links to service, the 6th House rules workers, the laboring classes, unions, labor organizations, wage conditions etc.
Twelfth House: This house rules things hostage situations .. behind the scenes manipulation, slavery, human rights issues etc
Eleventh House: The 11th represents the national purpose or purpose of the group as well as its hopes and dreams …as such it is also connected with a desire for reforms and improvement.
From references  and  we can also see how planets add details that increase our understanding of the event.
Venus : apparel manufacture
Pluto in Capricorn  : collapse of infrastructure (e.g. buildings)
Having understood that the sidereal Capricorn Ingress explains the
tragedy, the next obvious question is why did this happen on 24 April. The
answer to that can be seen fairly easily by progressing the Ingress chart to that date.
Notice that the “culprit T-square” is triggered by the progressed angles on 24
 The Houses and What They Govern in Mundane Astrology