Hello Bansi,
I hope your board exams are going well. I would like to suggest you focus on your board exams and other entrance exams so that you can score well and get into information technology at your desired engineering college. You will have ample time to learn about the languages that you will require for your engineering pursuit.
Now, talking about the languages that will be beneficial for you in the coming future if you opt for information technology are :
1. C++: If you are from CBSE board and having Computer Science as your 5th subject, then you don't have to worry much. The basics of the syllabus are same, there will just be a few extra things which won't be difficult for you to catch up later on. If you haven't taken computer science then I would suggest you go through it after your board exams because it becomes difficult to catch up with no previous knowledge where most of your batchmates will already know the basics.
If you are from ICSE board, I reckon you have Advanced Java in your intermediate. Switching to C++ won't be much difficult once you get used to the syntax.
If you are from the state board, I would suggest you go through it deeply because many of the students face problems particularly in this language during their engineering.
2. C: C language will be new for everyone as no boards have this language programmed in their systemic syllabus. Again, if you have previous knowledge in C++ or Java it won't be too tough for you to catch up. C is basically very easy if you have an understanding of C++. This language is important because it involves Data Structure which again is very important from a placement point of view.
3. Java: Java is similar to C++ in the context that both are object-oriented programming languages which involve the concept of an object. Again, if you are an ICSE student and opted for JAVA during 10th boards or 12th boards, you don't have to put any extra effort for the time being. But if you are not from the above-listed categories, it would be better if you learn the basics. This language is one the most important language among the list of whole programming languages and has very wide applications.
4. Phyton: This is considered to be less time taking and easier to learn. Although this language will not be in your engineering syllabus, it will still provide you with an edge among other students in terms of internships and placements.
There are many other languages as well but I guess having knowledge about these four languages is more than enough for an Information Technology engineer during their bachelors.
I hope I was successful in answering your question. If you have any query, you can contact anytime.
Thank you.

Hello aspirant

As per your question, java and DS is enough to learn.
Both are relatively easy to learn.

Hope this information is relevant to your question.

Thank you:)

Hello Bansi
You need to start from c language because it is the basic language and it will create a understanding of why language is and how it is used.
Than you can learn c++
After that you can learn java; python; and etc. During college time .
Language is not limited upto a certain level ; you can join online courses and other various competition which held online.
Good luck.

Hello Dear

See if you are talking about the technical language than in such case you have to learn the languages like C ,C++, Java and if you wish to go for the higher level in the area of Artificial Intelligence, Machine learning or either in Big Data then in such case you can go for the higher Language like Python / Anaconda but remain in mind before going to these languages your basics should be strong enough to adapt the concepts of this higher Language.

All the best