Requisition
First things First.  And sorry to have begun with this first.  We have no choice but to start from here by sending Requisition Notices to the Four buildings in front of Ruia College (Opposite the Matunga Gymkhana Grounds) as shown in the map alongside, where the famous DP's & Mani's restaurants are situated.  We are really sorry for the folks who reside in these buildings since the redevelopment of their buildings will have to be permanently forfeited.  But we believe they too will be happy to help, given that so many folks will get the benefit of it all.  Needless to say, the government will have to ably compensate them as well as relocate them in the nearby developments ONLY and offer greater carpet area flats to persuade them to agree.  In fact, it is some sort of a Godsend that these buildings have not been redeveloped yet while the rest of the nearby areas like Hindu Colony and Matunga East got developed.  Had they been redeveloped, it would’ve been impossible to execute the plan.  We are really grateful that these buildings have not been redeveloped.

Thankfully they don’t have to be demolished since the proposed NEW TILAK BRIDGE (NTB) will land down from above these four buildings.
Start building the New Tilak Bridge
We begin the construction of the 2 Lane New Tilak Bridge (as shown alongside from D2 to D4) from both the Padmabai Thakkar Road and the Pandurang Naik Marg-Bal Govindas Road simultaneously going eastwards thus making it a 2+2 4 Lane wide bridge from the Thote Milk Centre Circle up to Senapati Bapat Road.

We also start building the two ramp-ups on the Senapati Bapat Road joining themselves to the New Tilak Bridge and in the process we make the NTB a 6 Lane wide bridge.

We build one ramp-down at the landing at Lakhamshi Nappu Road that lets the Hindu Colony and Dadar Stn traffic land down on Lakhamshi Nappu Road.  From hereon the NTB once again becomes a 4 Lane bridge.  Of these 4 lanes the left-most lane lands down at Ambedkar Road helping the South Mumbai bound traffic get down.  And the remaining three lanes of traffic goes further up and by default turns left on to but above the Ambedkar Road adjoining to the Nanalal Mehta Flyover.  This 3 lane arm of the NTB is adjacent and adjoining to the existing Nanalal Mehta flyover helping the traffic to intermingle and land down either before the Maheshwari Udyan or continue further up towards Chembur or beyond.

So if you notice the NTB is a 6 Lane wide bridge in between.  We need this kind of width to allow the intermingling of the traffic from the feeder-connector bridges of Senapati Bapat Road.

And the best part is, that during the construction of the New Tilak Bridge we do not affect the present day traffic at all (except may be, some section of the Senapati Bapat Road while we are building the two ramp-ups on it).
Slicing off the Veer Kotwal Garden
Observe the present day Veer Kotwal Garden along with the traffic island (with the Kavdiwala Bhajiwala on it) in front of Plaza Theatre in the 1st picture.  Today, the westward bound traffic circumvents the garden.

Now observe in the 2nd picture wherein we have sliced off the garden in front of Plaza to the extent of creating 2 lanes worth of road space and also knocked out the Kavdiwala Bhajiwala along with his traffic island.

We then relocate the Kavdiwala Bhajiwala (Red Dot) on the corner of the garden and add back the 2 lanes worth of space (which is presently being used to circumvent the garden) into the garden and that too from TWO SIDES of the Garden (remember the geometrical theorem of 'the total of 2 sides of a triangle is more than the 3rd side.').  This will make the garden bigger than what it is.  And we also add the entire open space in front of Girgaon Panche Depot to the garden.  In doing all this we retain a couple of lanes worth of road space for the remainder of the traffic to go towards Dadar Station.  If you notice, the garden in fact becomes bigger than what it presently is.

With all this, the traffic moves westwards without circumventing the garden.  And also with this, the R. K. Vaidya Road bound traffic that needs to get into Dadar can get in there via the Ram Maruti (Sportfolio) Road, thus eliminating the present day eastbound traffic's criss-crossing in front of the garden.
Move Signals
After when the New Tilak Bridge is built, we then go to the next stage of moving the signals at the Sena Bhavan junction away from one another i.e. we take them wide apart and thus include the Padmabai Thakker Road along with the Dadasdaheb Rege Road within the ambit of the Sena Bhavan signal.  Observe the Red Dots where the signals will move.
The Final Transformation
And once when the New Tilak Bridge is ready for inauguration, then with one clean sweep, we execute the transformation.

We make the Tilak Bridge & the N. C. Kelkar Road a Westward One-Way up to Sena Bhavan.

We make the Padmabai Thakkar Road, Pandurang Naik Road-Bal Govindas Road & the New Tilak Bridge an Eastward One-Way up to Ambedkar Road.

And we also make the Dadasaheb Rege Road and the Ranade Road a One-Way from Sena Bhavan up to Savarkar Road.

Over time people will automatically learn NOT to turn right at either the Portuguese Church or at Siddhivinayak Temple to go to Dadar East.  This will declutter Dadar West and East both, since the traffic will move rapidly.  And thus 50% of the Sena Bhavan signal's traffic from the Lady Jamshedji Road, will be gone forever.
Other changes
With the old Tilak Bridge & the N. C. Kelkar Road having become west-bound One-ways, it will not be possible for the traffic from Dadar West to go to the East.  As part of the Final Transformation, we will then be required to create a by-lane, opposite Sena Bhavan, that circumvents the Kohinoor Mill as shown in the adjacent picture, a la, the northern end of the Rafi Ahmed Kidwai Road at Wadala West that lets the traffic go on to the Flank Road towards the backside of Gandhi Market.  This lane is meant to let the east-bound traffic from Dadar West, go on towards the New Tilak Bridge.
Some other tweaks
And after all of the above is operational, we wall-up either sides of the Old Tilak Bridge and then fill-up the sloping base of the bridge as shown in the picture.  With this we will be able to make the existing Old Tilak Bridge 6 Lane wide.  In doing so we will permanently lose the Pedestrian Stairways but that can comfortably be replaced with Elevators for people to go up or down the bridge.

Once when the Old Tilak bridge is a 6 Lane bridge we can afford to shut down half of it.  With this we are able to rebuild half of the Tilak Bridge and do the same with the other half later.  Just imagine we will have a nearly century old bridge replaced without the traffic getting adversely affected.

And we also permanently remove the Senapati Bapat Circle to let the traffic coming in from Sena Bhavan freely go to Ranade Road and from thereon to Savarkar Marg.  Senapati Bapat himself wouldn’t have grumbled since we already have commemorated him by naming a major arterial road in his name.