The man, Shashank Yadav, had appealed for an oxygen cylinder for his grandfather on Twitter.
AIMIM president urges people to vote for MIM, make sure no BJP candidate wins in Telangana State
The Union Minister on Monday visited her parliamentary constituency Amethi to inaugurate various development projects, including skill programmes for girls.
She will hold a chaupal in Cheda village later, before overseeing the arrangements at the Central Reserve Police Force (CRPF) camp in Trisundi village where a recruitment drive will be held.
Gandhi asked party workers to remain prepared for a long battle to resurrect the Congress and said that he would stand by them all through.
According to the police, the accused, identified as Wasim, was held in Shalhapur area on Friday night following an encounter where he sustained a bullet injury and was admitted to a hospital.
Amethi is considered a stronghold of the Congress party since years. Irani polled a total of 4,67,598 votes.
Rahul Gandhi said the Congress Working Committee will meet soon and decide whether he should resign as the party chief following the electoral debacle.
Priyanka Gandhi remained dormant for over a month till her Ganga Yatra started in March from Prayagraj to Varanasi.
Amethi, a traditional bastion of the Gandhi family, will go to polls on May 6. Counting of votes will take place on May 23.
She has been trending on social media for her "Kyunki Mantri Bhi Kabhi Graduate Thi" jibe at Union minister Smriti Irani.
The Congress alleged that she submitted contradictory affidavits to the EC for which she should be disqualified.