well good concept but then i have my doubts it wont work out, some of my observations and opinions, which has not yet been discussed:
1) Sabji booking on phone call: how will you manage the transportation and route mapping. For just one call at one locality, you cannot go and sabji being an item whech will be required for immediate cooking, ppl would expect preety fast TAT, which will be tough to manage, there fore you cannot wait for 3-4 orders from a common geographical area to optimise cost
2) You cannot charge a huge premium for the service or else it will a hit a very niche market, which wont work on a cost-benefit analysis. Also during time of budget control, first hit generally comes in daily expenditure which majorly includes edibles
3) If i am not wrong, we are not doing order booking right, which for eg: customer ordering 2 Kg aloo, 1 kg bhindi..500 grams garlic et all...we take the order, pack exact quantity and send it accross for home delivery, for this is what present incumbents are doing and it will need huge financial muscle to take on them. What we are suggesting is customer says i need 2 kg aloo, i kg bhindi..500 gms garlic et all...we have a standard ratio of how much to carry for a customer to choose and we take that specified sku to the customer. If this is the plan, it will be impossible to manage, first the tokri size sku, and then each sku will be different that means customsed for each individual, hell lot of stock management/order management/logistics based issue will be faced
4) Next comes vendor management, as discussed in point number 1, to actually implement this model on ground, we will need more touch points/feets on street, if we have a central or maybe partially distributed processing and stocking point, then managing these vendors will be tough as these vendors will be mobile and therefore communication/stock replenishment will face both cost and time constraints
This post is not to discourage the idea generator, as all realities have started with an idea only, its just to deliberate on these issues so that the final biz plan is more saleable
ciao..