hi RAVI,

           Congratulations first for getting such a good rank of 1600 in wbjee.OK So i would like to tell you that as you can see there is no such branch called robotic engineering in JU.Still if you have any confusion you can go through the link given below which contains a table from where you can find out the last year's opening(OP) and closing rank(CR) of all JU branches  in general category(OP).

https://c1.staticflickr.com/5/4302/35585983660_188bccf926_o.png

Hope this helped you.

All the best.