Why did the Congress President S. Nijalingappa issue a whip on all the Congress MPs and MLAs in 1969?

To vote in favour of Sanjeeva Reddy, the official candidate of the Congress party for Presidential elections.

The correct answer is Option (3) → To vote in favour of Sanjeeva Reddy, the official candidate of the Congress party for Presidential elections.

"The factional rivalry between the Syndicate and Indira Gandhi came in the open in 1969. Following President Zakir Hussain’s death, the post of President of the India fell vacant that year. Despite Mrs Gandhi’s reservations the ‘syndicate’ managed to nominate her long time opponent and then speaker of the Lok Sabha, N. Sanjeeva Reddy, as the official Congress candidate for the ensuing Presidential elections. Indira Gandhi retaliated by encouraging the then Vice-President, V.V. Giri, to file his nomination as an independent candidate. She also announced several big and popular policy measures like the nationalisation of fourteen leading private banks and the abolition of the ‘privy purse’ or the special privileges given to former princes. Morarji Desai was the Deputy Prime Minister and Finance Minister. On both the above issues serious differences emerged between him and the Prime Minister resulting in Desai leaving the government. Congress had seen differences of this kind in the past. But this time both the parties wanted a showdown which took place during the Presidential elections. The then Congress President S. Nijalingappa issued a ‘whip’ asking all the Congress MPs and MLAs to vote in favour of Sanjeeva Reddy, the official candidate of the party. Supporters of Indira Gandhi requisitioned a special meeting of the AICC (that is why this faction came to be known as ‘requisitionists’) but this was refused. After silently supporting V.V. Giri, the Prime Minister openly called for a ‘conscience vote’ which meant that the MPs and MLAs from the Congress should be free to vote the way they want. The election ultimately resulted in the victory of V.V. Giri, the independent candidate, and the defeat of Sanjeeva Reddy, the official Congress candidate. "