Hey Mansha.

The cut off for admission in any of the National Law Universities through CLAT in the previous year was a rank in the range of 1600 for the general category. Hence with a rank of 1296 your chances for an NLU under the vacanies are very good. Usually there are vacancies in the lower NLUs as people leave their seats for other colleges. 

Various NLUs have started announcing their vacant seats like NLU Raipur. And this year there are many vacant seats. Hence you should keep updated with the official websites of NLUs and apply as with your rank you have great chances. Also NLUAS has released a performa to be filled if you wish to be considered for admission in vacant seats. Last date to fill is 10th july. Do fill the form asap. And best wishes.

http://form.nuals.ac.in/applicationform.aspx

http://www.nuals.ac.in/Admission.aspx

Best of luck