Will Rahul's rallying opposition parties against BJP work?

The state of affairs is that the Lok Sabha elections coming next year (2024) cannot be won against the BJP unless opposition party unite. For this, United Janata Dal leader and Bihar Chief Minister Nitish Kumar is trying to unite the opposition parties.
He had come to Delhi two days ago for this purpose. He was accompanied by Rashtriya Janata Dal chief Lalu's son Tejashwi Prasad Yadav. Both met and held discussions with Congress leaders Mallikarjuna Kharge and Rahul Gandhi.
In the next step, Nationalist Congress President Sarath Pawar has given some advice to Congress President Rahul. 
According to this, it is learnt that Rahul Trinamool Congress President and West Bengal Chief Minister Mamata and Maharashtra Shiv Sena President Uddhav Thackeray are planning to meet all the opposition leaders in person.
What are their direct expectations from Rahul and all opposition leaders in this meeting? He is expected to hear that. West Bengal Chief Minister Mamata has been opposing the Congress joining the opposition party.
Thus, he is showing interest in joining the third front being tried by Telangana Chief Minister Chandrasekhara Rao. Former Uttar Pradesh Chief Minister and Samajwadi Party chief Akhilesh Yadav and Aam Aadmi Party's Arvind Kejriwal have also supported it.
In this context, will Rahul's meeting with opposition leaders be fruitful? The question has arisen. Recently, Rahul lost his MP post after receiving 2 years sentence in a criminal case against him. Most of the opposition parties in the meeting were in favor of the Congress.
Similarly, the opposition parties united against Prime Minister Narendra Modi are all set. 
The main question between the opposition parties is whether this unity will form an alliance and contest the elections. Can Rahul Gandhi bring opposition parties together against PM Modi? Let's hope the effort pays off!