"Eighteen political parties have given commitment to support me. Some parties are likely to announce their decision in a day or two while others may not announce at all. We hope they will vote for us," Sangma said addressing MPs and MLAs of the ruling BJD here.
Stating that the Tribal Forum of India had on May 8 appealed to political parties to consider candidature of a tribal for President's post, the former Lok Sabha Speaker said BJD supremo and Odisha Chief Minister Naveen Patnaik was the first to respond and announce his name on May 17.
"A few hours later echo of the voice from Bhubaneswar was heard in Chennai as Tamil Nadu Chief Minister and AIADMK chief J Jayalalithaa also extended support. It was followed by backing from so many parties including BJP," he said.
Describing the ensuing presidential elections as 'special', the former Lok Sabha Speaker said it has generated similar interest among common people as seen in the polls held in 1969 when V V Giri had contested against the official Congress candidate Neelam Sanjeeva Reddy and won.
In the past, people never used to know about elections for the post of President and for the first time it was highlighted in 1969, he said. Adding after so many years the presidential poll has generated interest among common people.
"The kind of involvement common people are showing in the process this time is unbelievable," Sangma said recalling how Gujarat Chief Minister Narendra Modi told him that the polls had gone beyond MPs and MLAs and attracted common people.