You can do either pg courses in vlsi,embedded,signal processing,communications and you can go to job opportunities in software in Infosys ,tcs,cts as program developer or script writer
embedded in texas,xilinx
chip:intel,cadence
TELECOMMUNITION:SONY,HP,PHILIPS
Job opportunities in (govt.):BARC,ISRO,DRDO,IES,BEL
BANK OPPORTUNITIES(PUBLIC):BSNL JTO,BANKS,CDAC,KELTRON.
you have so many opportunities as a ece student