India has significantly contributed to Afro-Asian solidarity through:
1. Bandung Conference Leadership (1955): India co-organized the Bandung Conference, instrumental in establishing the Non-Aligned Movement (NAM) to unite Afro-Asian nations against colonialism and imperialism.
2. Aid to African Independence: India steadfastly backed African nations' independence movements, offering moral and political backing to struggles in nations such as South Africa and Algeria.
3. Promotion of South-South Cooperation: India champions economic and political collaboration among developing nations, especially in the Global South, to encourage shared prosperity and progress.
Therefore, the correct choice is (b).