 Then to a surprise you know as soon as we produce 20 we got an order for 200. So tell me now once we have an order for 200 will my old top which is made out of hand lay process work for me it will not. So I will have to think of innovative ways of manufacturing the top again luckily the stainless steel fabrication was anyway high quality CNC production. So it had all the components which you could produce through CNC manufacturing. So that was you know still there. So we went ahead back in our journey went back to concept again and then we tried number of options remember I was always telling you we need to have at least three options before you decide what type of process to use can you see that white top what do you think the material is there in that box which you see on the slide the bottom is still on the top it was supposed to be plastic but then I had to produce 200 numbers so I said can I try aluminum casting so this is the aluminum casting top we tried an aluminum casting too because now to produce you know like 200 numbers and casting is a very good process to produce 200 numbers again batch production very convenient we tried this and we found it very expensive we also found it very heavy so we didn't go ahead with this idea then we said this is a fan casting process where you make a mold and then you pour molten aluminum and then you get your you know one piece top and then we said let me try a next technique of low-cost tooling called vacuum thermoforming so what is this process you have a sheet of plastic you heat it to the you know temperatures where it becomes like a cloth and you wrap it around the mold by vacuum so you have the surface and you suck the air out of the surface it sticks to the surface of the dye and that is how the forming is done in the cavity also you suck it adheres to the cavity and you get this tray which is available so we use the same technique to make the next level so in this process we had to go and get the raw material also luckily we were you know happy that G plastics collaborated so we got this you know granules the plastic is made in the form of granules and we made sheet out of this granules by extrusion what is the extrusion process you heat the granules and you extrude out of a thin slit and you get these slabs of plastic so we extruded the sheet why do you need to extrude the sheet because nobody has this red color we had to get the granules we had to extrude the sheet on our own and then we made these dyes the three-part dye and finally you cut all the parts together and we joined it using the best adhesives from Huntsman manufacturer adhesives who makes it really you know stronger than the virgin material today adhesives are very very high-tech you have very very good adhesives in the market which are as good as the original material and then we have now the composite to thermoforming top lightweight you know a formed out of three parts there is one part there is a front part and this is the flap which goes in and this again was very very mass manufacturable to a level of 200 numbers so we you know using the cost again see the whole business when you come to large volumes like 200 numbers is cost what type of tooling cost and what type of production cost and because we are working with the government it was very difficult for us to convince that please give me an upfront tooling cost and then give me the production cost they can't do that so they they said no no we you you said that the post box is going to cost 8000 rupees we can't give you more than that so we have to work out innovative ways of pilot production of how we went ahead with making the top you can see one of the boxes supporting the top so here we have the tops ready then we made all the drawings ready you can see how engineering drawings are made with all the details and you know this is the assembly drawing this is the drawing of the base you see the small indentations to make the stainless steel very strong and you know how the whole situation was taken forward and then how the fabrication was drawing was you know made and remember I was talking about embossing on the post box to make it very strong so we reduce the cost by 3000 rupees by reducing the thickness of the stainless steel so what we did was we used you know this work hardening property by doing constant bending the stainless steel edge the corner which was the most important became very strong and we reduced the thickness of the stainless steel sheet from 1.6 millimeters to 1.2 millimeters and saved around 3 kilos of stainless steel we have these embossing which makes the surface very strong so we use the embossing we use the bending and made the product you know very very strong so from these then you know we went ahead and we you know went for pilot production