You should read the Constitution before making random statements like these. The Parliament is supreme because every part of the Supreme Court (size, age of the judges etc) is in the hands of Parliament.
Unfortunately, like most countries including the United States, politicians prefer to use the Supreme Court to tackle knotty political issues. So, from the outside, it looks as if these courts are all powerful. Till someone proves that they are not. Like Indira Gandhi did during the Emergency.
The US has Marbury v. Madison. We have the Basic Structure Doctrine. The SCI invented a "Collegium" in the same way that they did the BSD. I am not going to go into whether these things are good or bad.
If the President asked the judges to go pound sand, there is nothing can can do about it except hold a press conference.
I consider the striking down of the NJAC to be illegitimate. If the government of the day had a backbone, every single judge would have been impeached.