Is the syllabus of IPU-CET for BCA different? If so, what are the essential things one has to be awared of to ace the exam?

Yes, the syllabus for IPU - CET for BCA is different as it includes :

General Awareness : Computer Basics, Organization of Computer, Central Processing Unit (CPU), Structure of instructions in CPU, input / output devices, Computer Memory , Memory Organization and Back-up devices.

English : Reading Comprehension , Jumbled Sentence ,Nouns, Pronouns, Adjective, Adverbs, Prepositions, Articles, Verbs, Tense , Modifiers, Parallelism ,Sentence Improvement, Subject Verb Agreement, Sentence completion, Word Usage, Synoymns, Idioms and Pharses, Cloze Test, Antonym, Analogy, Homophones, Confusables, Migratory Words andPhrasal Verbs

General Knowledge and Current Affairs:

Politics,Banking and Finance,Business,Sports,Institutions of India,Defence & Space,Indian Judiciary,Awards & Honours ,Literature,Economics,Indian Constitution,International Relations ,Science and Technology,Movies,Who's who,Indian Industries,Indian Agriculture,Current Affairs,History and Geography

Quantitative Ability:

Data interpretations, Data Sufficiency,Profit, Loss and Discount,Percentage,Partnership,Pipes and Cisterns,Time and Work,Time, Speed and Distance,Ratio and proportion,Age,Averages,Alligation and Mixture,Circular Track & Upstream-downstream,Compound interest,Relative speed,Simple Intrest
Angles, lines, Properties of Circles,Area and Volume of 2D and 3D figures,BODMAS/Simplification,Quadratic equations,Number System,Probability,LCM and HCF,Permutation and Combination,Height and Distance,Logarithm,Linear Equation,Indices,Arithmatic and Geometric Progression,Set Theory & Venn Diagram,Geometry and Mensuration,Properties of Quadrilaterals and Properties of Triangles.

So, you have to be aware of all these concepts.