sound (ശബ്ദം) For kerala psc preliminary exam || general science || syllabus chapter 11
45:40
അയിരുകളും ധാതുക്കളും
41:35
HEAT || For kerala psc preliminary exam || Syllabus chapter 9 || for LDC preliminary exam
1:03:33
ENERGY PART 2 || For kerala psc preliminary exam syllabus chapter 7&8
37:45
Physics ശബ്ദം ( Sound ). Preliminary Exam special
58:20
രസതന്ത്രം ദൈനംദിന ജീവിതത്തിൽ part 1|| for kerala psc preliminary exam|| Syllabus chapter 5
1:02:29
ENERGY PART 3 || For kerala psc preliminary exam || Syllabus chapter 7 & 8|| LDC || LGS ||10th level
1:18:44
ENERGY PART 4|| For kerala psc preliminary exam || Syllabus chapter 7 & 8 || prelms exam
31:16