There are some 'martial' communities in Gujarat, and these are the ones that join the army. Among them as the durbar (Rajput) communities, with names like Jadeja and Solanki. And so the number of martyrs cannot be zero, even though it is few. Another reason Gujarat has produced few soldiers is that it has not seen much war.
Gujarat was conquered by Allauddin Khilji in 1297. After this, though there was some fighting in Gujarat, very little of it involved Gujaratis. The northern Muslims fought among each other till Akbar took Ahmedabad and the Mughals kept Gujarat. Then the Marathas captured large parts of it, and they still hold onto Baroda. Then the English took over, starting at Surat. In very little of this fighting were Gujaratis, whether, Hindu, Muslim or Parsi, involved.
Another reason for the lack of Gujaratis in the army is that the state has a powerful mercantile ethic. This stresses pragmatism and does not give much importance to honour. Many 'martial' communities will scoff at this ethic but it is the reason Gujarat has produced great businessmen. The ability to compromise instead of standing fixed on honour is also the reason Gujarat has produced many great statemen. Before independence, three of India's four greatest political figures -- Gandhi, Jinnah and Patel -- were Gujaratis.
One of the interesting ways in which this culture showed today is in my caste of Patidars. We have, along with the Jats of Haryana, one of the lowest sex ratios of any community in India and often female foetuses are aborted or little girls strangled at birth. This is a matter of great shame and Patidars must correct it. However, unlike the Jats, Patidars do not do honour killing, meaning murdering adult women who marry their lover. And the reason is that the mercantile ethic does not value honour.
It is fine for people to be offended at Yadav's statement, but it is based on some fact and reality. Gujaratis need not feel ashamed of the lack of this martial tradition. They contribute to their country in other ways. And of course, they can also claim that while they may not have produced many martyrs, they produced the greatest one: Gandhi.