Till late in the evening there was no official statement from the government or the ruling AIADMK on either her participation or whether she would depute any representative.
Last week, Jayalalithaa dubbed as "unfortunate" the Prime Minister-designate Narendra Modi's invitation to Rajapaksa for his swearing-in, saying the "ill-advised" move could have been avoided as it amounted to "rubbing salt into the wounds of the already deeply injured Tamil psyche."
She had recalled the various resolutions passed in the state Assembly demanding an economic embargo on Sri Lanka among others over the alleged war crimes by the island nation's Army under the Rajapaksa Government against Tamils there during the final stages of "civil war".
Jayalalithaa and Modi had attended the swearing-in of each other as Chief Minister in the past.
Though the two leaders attacked each other during the final stages of the Lok Sabha poll campaign, they exchanged pleasantries over their respective emphatic wins last week, in a sign of warming up.
But the invitation to Rajapaksa has put a question mark over Jayalalithaa's presence at the swearing-in as sharing the platform with the Lankan leader would be difficult as all parties in the state hold him responsible for alleged war crimes against Tamils in the island nation in 2009.
Besides the AIADMK, DMK President M Karunanidhi also opposed the invite to Rajapaksa. BJP's allies MDMK, led by Vaiko, PMK and DMDK led by actor-politician Vijaykant have also opposed the invitation to Rajapaksa.
Vaiko has announced a black-flag demonstration in New Delhi and here against Rajapaksa tomorrow.