1) Economic problems: The Mughal empire faced a number of economic challenges in the 17th and 18th centuries. These included a decline in agricultural productivity, an increase in inflation, and a decrease in trade. The empire also had to deal with the rising power of the European trading companies, which began to dominate trade in the Indian Ocean.
2) Political instability: The Mughal empire was also plagued by political instability in the 17th and 18th centuries. This was due in part to the weak leadership of the later Mughal emperors, as well as to the growing power of the regional governors. The empire also faced a number of external threats, including invasions from the Persians and the Afghans.
3) Social and cultural changes: The Mughal empire also experienced a number of social and cultural changes in the 17th and 18th centuries. These included the rise of new religious movements, such as Sikhism, and the increasing influence of European culture. These changes led to tensions between different groups within the empire, and contributed to the empire's decline.
In conclusion, while wrong policies were certainly a significant factor in the decline of the Mughal empire, they were not the only reason. A number of other factors, including economic problems, political instability, and social and cultural changes, also contributed to the empire's downfall.