Diastrophism refers to deformation of the Earth’s crust due to diastrophic movements (deforming movements) such as folding, faulting, warping (bending or twisting of a large area) and fracturing. All processes that move, elevate or build up portions of the earth’s crust come under diastrophism. 
They include: orogenic processes involving mountain building through severe folding (crust is severely deformed into folds) and affecting long and narrow belts of the earth’s crust; epeirogenic processes involving uplift or warping of large parts of the earth’s crust (simple deformation); earthquakes and volcanism involving local relatively minor movements; plate tectonics involving horizontal movements of crustal plates. The most obvious evidence of diastrophic movement can be seen where sedimentary rocks have been bent, broken or tilted.
JPSC Notes brings Prelims and Mains programs for JPSC Prelims and JPSC Mains Exam preparation. Various Programs initiated by JPSC Notes are as follows:-
- JPSC Mains Tests and Notes Program
- JPSC Prelims Exam 2020- Test Series and Notes Program
- JPSC Prelims and Mains Tests Series and Notes Program
- JPSC Detailed Complete Prelims Notes