i have secured 70% in 12th can i give jee mains

Unfortunately you are not eligible for jee mains as the criteria is 75% but surely there are many other ways like bitsat,vitee,srm,mmmut,ggsipu,comedk and many other state entrance examination.do prepare well for these and secure a decent rank.surely you'll get a good college

No,
If you are general you must secure a minimum of 75%.
65% for ST/SC

Hello,

To appear for jee mains there is no minimum percentage criteria,However there is a minimum percentage criteria for admission in NITs/IIITs/IITs i.e 75% in class 12th board exams.

Good luck.