Step 1: WTO background.
The World Trade Organization (WTO) replaced the General Agreement on Tariffs and Trade (GATT) in 1995. India was one of the founding members.
Step 2: Analyzing the options.
(A) 1995: Correct — India became a member in 1995 when WTO was established.
(B) 1996: Incorrect — India was already a member by then.
(C) 1998: Incorrect.
(D) 1999: Incorrect.
Step 3: Conclusion.
India became a member of the WTO in 1995.