What was the name of the electoral alliance of non-congress and non-communist opposition parties in the 1971 elections?

Grand Alliance

The correct answer is option (2) - Grand Alliance

1971 Lok Sabha Elections:

The electoral landscape seemed unfavourable for the Congress (R) faction. This faction was an offshoot of an already feeble party, and the true organizational power was perceived to be vested in Congress (O). Adding to Indira Gandhi's challenges, a formidable coalition of major non-communist and non-Congress opposition parties formed the Grand Alliance. This alliance united parties like SSP, PSP, Bharatiya Jana Sangh, Swatantra Party, and Bharatiya Kranti Dal. The ruling party, meanwhile, had established an alliance with the CPI