How much do i need to score in Part 1 and Part 2 to be called for an interview??

Around 75 in Part - I and 230 in Part II, that's what I had to get a call for interview and for being selected.

Do people older than 30+ get selected? The earlier cutoff was 27, now it's 32. What chances does an older candidate have ml?

Depends on your CV.

Older candidates do stand a chance in getting selected, if any most of my other colleagues who are law clerks were confronted with the question that being a fresher if they would be able to add value to the Judge's office.

In the end the judges want their work to not suffer, so prior experience and good grasp of the work expected to be done; making cohesive briefs, detailed research and judgement notes is the primary concern, with older candidates having a sort of preference over freshers.