Caste change

is there chance to get job changing into other caste

ex: she as bc caste, after marriage" husband as sc caste" ,is there chance to change(she) into husband caste to get job..

............    i got job by changing the caste from bc to sc ,and  got govt job

if i did is there any problem ,if so can u explain ..can u send clear G.O to my id.

thank u