Merge pull request #1448 from Akhilan/master

Added some Lecture Notes

free-programming-books.md

@@ -250,9 +250,11 @@ Original Source: [Free Programming books](http://stackoverflow.com/revisions/392
 * [Algorithms and Complexity](http://www.math.upenn.edu/~wilf/AlgoComp.pdf) (PDF)
 * [Algorithms and Data-Structures](http://www.ethoberon.ethz.ch/WirthPubl/AD.pdf) (PDF)
 * [Algorithms Course Materials](http://compgeom.cs.uiuc.edu/~jeffe/teaching/algorithms/) - Jeff Erickson
+* [Analysis and Design of Algorithms](http://www.cse.iitd.ernet.in/~ssen/csl356/admin356.html) - Sandeep Sen, IIT Delhi
 * [Matters Computational: Ideas, Algorithms, Source Code](http://www.jjj.de/fxt/fxtbook.pdf) (PDF)
 * [Binary Trees](http://cslibrary.stanford.edu/110/BinaryTrees.pdf) (PDF)
 * [Clever Algorithms](http://www.cleveralgorithms.com/nature-inspired/index.html)
+* [Data Structures](http://www.cse.iitd.ernet.in/~suban/cs130/index.html) - Prof. Subhashis Banerjee, IIT Delhi
 * [Data Structures and Algorithms: Annotated Reference with Examples](https://drive.google.com/file/d/0B48k2jhdQ5P2aVlmMFB1UUJLczA/edit?usp=sharing)
 * [Data Structures Succinctly Part 1, Syncfusion](http://www.syncfusion.com/resources/techportal/ebooks/datastructurespart1) (PDF, Kindle) *(Just fill the fields with any values)*
 * [Data Structures Succinctly Part 2, Syncfusion](http://www.syncfusion.com/resources/techportal/ebooks/datastructurespart2) (PDF, Kindle) *(Just fill the fields with any values)*
@@ -384,8 +386,11 @@ Original Source: [Free Programming books](http://stackoverflow.com/revisions/392
 * [Linear Algebra: An Introduction to Mathematical Discourse](http://en.wikibooks.org/wiki/Linear_Algebra) - Jim Hefferon
 * [Linear Algebra, Theory And Applications](http://www.math.byu.edu/klkuttle/linearalgebra.pdf) - Kenneth Kuttler
 * [Mathematical Logic - an Introduction](http://www.ii.uib.no/~michal/und/i227/book/book.pdf) (PDF)
+* [Mathematics, MTS 101A](http://home.iitk.ac.in/~psraj/mth101/) - P. Shunmugaraj, IIT Kanpur
 * [Notes on Differential Equations](http://www.math.cornell.edu/~bterrell/dn.pdf) - Robert E. Terrell
 * [Number Theory](http://web.mit.edu/~holden1/www/math/number-theory.pdf) (PDF)
+* [Numerical Methods](http://www.iitg.ac.in/kartha/CE601-14/CourseSchedule.htm),2014 - Dr. Suresh A. Kartha, IIT, Guwahati
+* [Numerical Methods](ihttp://www.iitg.ac.in/kartha/CE601/LectureSlides.htm),2012 - Dr. Suresh A. Karmtha, IIT, Guwahati
 * [OpenIntro Statistics](http://www.openintro.org/stat/textbook.php)
 * [Ordinary Differential Equations](http://en.wikibooks.org/wiki/Ordinary_Differential_Equations)
 * [Power Programming with Mathematica](http://mathematica.stackexchange.com/questions/16485/are-you-interested-in-purchasing-david-wagners-power-programming-with-mathemat/22724) - David B. Wagner
@@ -500,6 +505,7 @@ Original Source: [Free Programming books](http://stackoverflow.com/revisions/392
 
 #### Operating systems
 * [How to Make a Computer Operating System (Work in Progress)](https://github.com/SamyPesse/How-to-Make-a-Computer-Operating-System)
+* [Operating Systems](http://www.cse.iitd.ernet.in/~suban/csl373/index.html) - Prof. Subhashis Banerjee, IIT Delhi
 * [Operating Systems and Middleware](https://gustavus.edu/mcs/max/os-book/) (PDF and LaTeX)
 * [Operating Systems: Three Easy Pieces](http://pages.cs.wisc.edu/~remzi/OSTEP/) (PDF)
 * [Practical File System Design: The Be File System](http://www.nobius.org/~dbg/practical-file-system-design.pdf) (PDF) - Dominic Giampaolo
@@ -604,6 +610,7 @@ Original Source: [Free Programming books](http://stackoverflow.com/revisions/392
 * [Building Blocks for Theoretical Computer Science](http://www.cs.uiuc.edu/~mfleck/building-blocks/index.html) - Margaret M. Fleck
 * [Category Theory for Computing Science](http://www.tac.mta.ca/tac/reprints/articles/22/tr22.pdf) (PDF)
 * [Homotopy Type Theory: Univalent Foundations of Mathematics](http://homotopytypetheory.org/book/) (PDF)
+* [Introduction to Computer Science](http://www.cse.iitd.ernet.in/~suban/CSL102/) - Prof. Subhashis Banerjee, IIT Delhi
 * [Introduction to Computing](http://www.computingbook.org/)
 * [Introduction to Theory of Computation](http://cg.scs.carleton.ca/~michiel/TheoryOfComputation/) (PDF) - Anil Maheshwari and Michiel Smid
 * [Models of Computation](http://cs.brown.edu/people/jes/book/) - John E. Savage
@@ -615,6 +622,7 @@ Original Source: [Free Programming books](http://stackoverflow.com/revisions/392
 * [Programming Languages: Application and Interpretation (2nd Edition)](http://www.cs.brown.edu/~sk/Publications/Books/ProgLangs/)
 * [Semantics with Applications: A Formal Introduction](http://www.daimi.au.dk/~bra8130/Wiley_book/wiley.html) - Hanne Riis Nielson, Flemming Nielson
 * [Structure and Interpretation of Computer Programs](http://mitpress.mit.edu/sicp/)
+* [Theory of Computation](http://www.cse.iitd.ernet.in/~ssen/csl705/admin705.html) - Sandeep Sen, IIT Delhi
 * [Think Complexity](http://www.greenteapress.com/compmod/) - Allen B. Downey