Expenses allowability in the first year of the starting of company

Dhirvir H Parmar (Audit Co-Ordinator) (36 Points)

11 June 2018  
Dear sir,
Our company was incorporated on 28-03-17. We are developing a tool that will capture the data from the pipeline of the petrol. It is basically research and development. We have incurred various expenses on tool so far. Tool is ready but no sales revenue is booked in the year 2017-18. It is likely to be sold in the year 2018-19. In 2017-18, we have incurred expenses only. I request the understanding on below points

1. Since, its a newly started company, we have incurred expenses only to develop a tool but it has not been commercialised i.e no sales have been booked in the year 2017-18.
So for the fy 2017-18, are we eligible to claim all the expenses and can we show the carry forward loss?

2. somewhere i have heard that since these are pre operative expenses, needs to be written off over a period of 5 years. I think these expenses should not be considered as pre operative expenses because the operation has already been started. The only thing is tool is not ready for sale and we have not recognised any revenue in fy 2017-18.
3. Can i be allowed all the expenses in the year 2017-18 and carry forward the loss to the next year?

Please suggest.