hello aspirant,

I hope that you are doing absolutely great.

With reference to your above mentioned query, i would like to tell you that getting any government engineering colleges with only 70 marks in JEE mains is quite Difficult. With 70 marks in JEE mains, your predicted percentile score  would be 85.96 - 89.08 . So, with this percentile score you cannot get any government colleges even with the state quota.

The JEE mains cutoff varies every year and it is different for different category students. The JEE mains cutoff depends on several factors like : Difficulty level of the paper, number of aspirants appearing the examination, previous year exam trends, etc.

However, you can try looking out for some Private engineering colleges as you can get seat there.

Further, you can read the below article to know about the JEE mains cutoff trends for previous year : https://engineering.careers360.com/articles/jee-main-cutoff

Also, you can check out the JEE mains college predictor tool to know your admission chances in other government or private engineering colleges based on your rank and percentile score :

https://engineering.careers360.com/jee-main-college-predictor?utm_source=qna&utm_medium=jee_cp

I hope that this will help.