I heard a sentence "Budhi Karmaanu saarena", sometimes your mind makes the choices without your consciousness that drives you towards your destiny. Is it true? Was it mentioned anywhere in hindu scriptures ?
A Partial answer.
The question is
sometimes your mind makes the choices without your consciousness that drives you towards your destiny. Is it true? Was it mentioned anywhere in hindu scriptures ?
As far as I know, it was not mentioned in any scripture.
In my opinion, it is partly true.
Sri Krishna says in BG, as follows;
न हि कश्िचत्क्षणमपि जातु तिष्ठत्यकर्मकृत्।
कार्यते ह्यवशः कर्म सर्वः प्रकृतिजैर्गुणैः।।3.5।।
For, no one can ever remain, even for a moment, as a non-performer of action; because everyone, being not master of himself, is forced to perform action by the Strands born of the Prakrti.
Now a question arises as to why should Prakriti, the visible form of the Almighty God, force everyone to perform action? The answer would be to clear one's prArabdha (accumulated merit), be it enjoyment or suffering.
Sri Krishna said in BG that HE was TIME - कालोऽस्मि. So TIME/Prakriti will goad all creatures into activity, be it enjoyment or suffering, which are again transient in nature.
Sita laments in Ramayana that TIME had allured her into falling for golden deer, resulting in her captivity in Lanka.
नूनं स कालो मृगरूपधारी | मामल्पभाग्यां लुलुभे तदानीम् | यत्रार्यपुत्रं विससर्ज मूढा | रामानुजं लक्ष्मणपूर्वजं च || ५-२८-१०
"Certainly that Time-spirit, assuming the guise of a deer, allured me, a woman of poor fortune at that time and to whom I, a stupid woman, sent forth (far away) Lakshmana and the noble prince Rama the elder brother of Lakshmana."
Coming to the question proper, as I stated above, the assumption of the OP is half-true.
The prArabdha definitely propels ONE in doing certain things (action). However, in order to do action, one must be propelled by TIME.
So the sequence of events will be:
TIME/Prakriti -> Karma/prArabdha -> One's MIND