No, it was not a wrong decision because the aim behind this was to develop the country through increase in trade.
Step-by-step explanation:
The decision granted by the Mughal emperor Jahangir to trade with the East India company was done with the intention to increase the trade of the country with East India company and then lead to the growth and development of the country.
With the increase of the trade, there would be more employment opportunities in the country and there would be more choices with the consumers to increase their standards of living their life.