Hello abhaymaurya536,

Well, CSE with spec. in Iot is for those who decided to work in the development of IoT products and services along with the devices for sensing, actuating, processing and inter communication etc... but if you are yet to explore whether you like Web Development, Or Android Development, Or Data Scientist Or Machine Learning and Artifical Intelligence Or cryptography Or Network Analyst and tons of more.... then you should choose IT, as the academics of CSE(core) and IT are nearly same, and placements are also almost same for both, So if were you, I have choosen IT over any specialization course...

Hope this helps, and feel free to ask any further query...