Former JNUSU President and CPI leader Kanhaiya Kumar is set to join the Congress party on 28 September.
A bench headed by Chief Justice NV Ramana said that the decision should be taken by High Court.
Before filing the case, Parab had sent a notice to Somaiya demanding a written apology.
The court has fixed September 27 as the next date of hearing.
Recently, Somaiya had accused Rural Development Minister and Kagal MLA Hasan Mushrif of corruption.
Ambika Soni and Harish Chaudhary played an important role in the appointment of the new CM.
Captain Amarinder Singh submitted his resignation to the Governor Banwari Lal Purohit.
ED had summoned Abhishek Banerjee and his wife in the West Bengal Coal Scam Case.
After quitting the BJP, Babul Supriyo had announced his 'retirement' from politics.
Amidst the ongoing tussle in the Punjab Congress, the high command has called a CLP meeting today.