In my opinion Modi is in touch with some other parties who are eager to get some Ministerial Posts in Central and who have 3/4 MPs and can easily get into his trap. they want Power which is difficult to get for INDI and already gained by NDA. Now before Modi oath we can see their strength as 310-320 in between with others and Independent who are in figures of 5-7. In my opinion Modi will also get support of DMK with threats or any other way as TN always want their ministers in Central and they don't care who is the PM. INDI is going to split very soon