BJP rule in Gujarat has spread depression says the Congress, which plans to come up with ideas to spread cheer among voters.
Gandhi said he did not need anybody's certificate about his religion.
Narendra Patel also showed bundles of cash that he said were handed over to him, at a late-night press conference on Sunday.
Elections for 19 Rajya Sabha seats spread across eight states will be held on Friday with the contest in Gujarat, Madhya Pradesh and Rajasthan promising to be a close affair between the BJP and the Congress.
The former Gujarat chief minister has been at loggerheads with the Congress leadership for quite some time.
Veteran Congress leader Digvijaya Singh and Bharatiya Janata Party candidates Jyotiraditya Scindia and Sumer Singh Solanki on Friday won Rajya Sabha election from Madhya Pradesh.
They alleged that the central bank has "failed miserably" in handling the situation post-demonetisation.
The BJP has managed to retain its lead in all the six municipal corporations -- Ahmedabad, Surat, Rajkot, Vadodara, Jamangar and Bhavnagar -- which went to polls last month.
In his short speeches at various places, Gandhi assailed Modi over demonetisation and a host of other issues.
NCP MLA Kandhal Jadeja said his party has decided to support BJP candidate.
Elections in Gujarat, Himachal Pradesh, Karnataka, Chhattisgarh, Madhya Pradesh and Rajasthan will see the BJP and Congress in direct contest.
The man who threw stones at Rahul's vehicle has been detained.
The BJP assessment -- or at least that of some of its leaders -- is that the Congress in Gujarat has peaked too soon, having already fired all its weapons and has nothing new to say.
Congress demanded a judicial inquiry by a sitting high court judge.
BJP claimed close to 116 lawmakers from rival parties appeared to have voted for Kovind.