A major challenge faced by Gujarat in the past has been:

Communal tensions
Naxalite insurgency
Natural disasters
Border disputes

The correct answer is: Communal tensions.

Communal tensions have been a major challenge faced by Gujarat in the past. The state has witnessed several communal riots, the most notable being the 2002 Gujarat riots. The riots left over 1,000 people dead, most of them Muslims. The riots were sparked by the burning of a train carrying Hindu pilgrims in Godhra. The train was carrying kar sevaks, Hindu activists who were returning from Ayodhya, where they had been protesting the construction of a mosque on the site of a Hindu temple. The burning of the train led to widespread violence against Muslims in Gujarat.

The 2002 Gujarat riots were a major setback for the state. The riots damaged Gujarat’s reputation and led to calls for international sanctions against the state. The riots also led to a loss of confidence in the state government. The state government was accused of not doing enough to stop the violence and of even encouraging it.

The 2002 Gujarat riots are a reminder of the challenges that Gujarat faces. The state has a history of communal tensions and these tensions have the potential to erupt into violence. The state government needs to take steps to address these tensions and to prevent them from leading to violence.

The other options are not as significant as communal tensions. Naxalite insurgency is a problem in some parts of India, but it is not a major challenge in Gujarat. Natural disasters are also a problem in India, but they are not as common in Gujarat as they are in some other states. Border disputes are a problem between India and some of its neighbors, but they are not a major challenge in Gujarat.