The question asks about the rank of Haryana among Indian states in terms of software exports. Based on general knowledge and available data, we know that Haryana, particularly the city of Gurugram, is a significant hub for the software and IT services industry in India. However, it is behind the top exporting states like Karnataka and Maharashtra.

1. Understanding the Choices: The options given are: Second, Fourth, First, and Third. The focus is to identify which rank Haryana holds among these.
2. Evaluating the Options:
   • First: Karnataka, with Bengaluru as a tech hub, holds the first rank in software exports, making this option incorrect for Haryana.
   • Second: Maharashtra, with Mumbai and Pune contributing significantly, usually holds the second position, making this option unsuitable for Haryana as well.
   • Third: After Karnataka and Maharashtra, other prominent states like Tamil Nadu and Haryana vie for higher positions. Considering Haryana's significant contribution through Gurugram, it can be logically placed here.
   • Fourth: This could be a potential position for Haryana, but given the historical data and the growth in Gurugram, third is more applicable.

Therefore, among Indian states, Haryana ranks third in terms of software exports. This conclusion aligns with historical export data trends and known industry hubs within the state.