The Republic of India and the Federal Republic of Nigeria have built strategic and commercial ties. Both are members of the Commonwealth of Nations and the Non-Aligned Movement. India has a High Commission in Abuja and a Consulate in Lagos, and Nigeria has a High Commission in New Delhi. Indian business firms have invested estimated $15 billion in Nigeria. India is Nigeria's leading investor, with a investment base of about $20 billion. The figures on the amount of Nigeria's investment in India if any are not known. India-Africa trade has slowly been increasing with trade volume of USD 55.9 billion in year 2020-2021. Background India's relations with Africa date back to 30 BCE when there was trade between Egypt (under Roman Emperor Augustus) and India. Up to 120 Roman ships set sail each year from Myos Hormos (Al-Qusayr) in Roman Egypt to India. In the same period, Indian dhows frequented East African shores selling Indian handloom products, spices and other goods. Archaeological evidence recently found in Egypt shows that Indian merchants that traded with the Mediterranean region were inhabitants of the Coromandel Coast of India. That exhibits the extent of India-Africa relations at that time. India gained independence in 1947; Nigeria followed and gained independence in 1960. India strongly supported independence of African countries from colonial rule and established its diplomatic mission in 1958 – two years before Nigeria officially gained independence from British rule. Soon after Nigerian independence, the Indian government got involved in helping establish a military and several other projects in Nigeria. India aided Nigeria in building military establishments like the Nigerian Defence Academy (NDA) at Kaduna and the Naval College at Port Harcourt, along with other military training facilities. Several Nigerian military personnel attended the Defence Services Staff College (DSSC) in Wellington, Tamil Nadu, India. The current President of Nigeria Muhammadu Buhari attended the DSSC in the 1970s. Other Nigerian presidents who attended the same college are Presidents Olusegun Obasanjo (1965) and Ibrahim Babangida (1964). A few other top Nigerian military officers also attended India's Defence Services Staff College. Upon Nigeria gaining independence, Indian businesses set up shops in Nigeria. Both nations possess diverse natural and economic resources and are the largest economies in their respective regions. Currently India's concessional line of credit to Africa is almost $9 billion, with present projects taking up $7.4 billion. Economic relations India- Nigeria trade in 2018-19 amounted to US$13.89