After B.S. from IISc, should I go abroad for M.S. and PhD or do the same in IISC? What government jobs in India can I get after my PhD?

Dear friend if you are lucky enough to get an opportunity at IISC, then well and good or else you may try in your own country as well as there are various highly reputed institutions offering Ph.D degree, try to visit the official website of these chosen ones and get admission in any one of these – JJTU, Jhunjhunu,.....................DAV University, Pathankot Road,Jalandhar,.......................Lovely Professional University, Phagwara,......................PEC Technical Univeraity, Chandigarh.