Is it Saturn, Rahu or some other planets working behind my depression issue?

Namaste Rohan Ji, Sudden episodes of hopelessness in an otherwise stable life are the signature of Rahu and Ketu. Born on January 21, 1990, at 6:10 AM in Lucknow, you have a Capricorn Ascendant. The "suddenness" you describe happens when Rahu transits over your natal Moon or Sun. Rahu is like a sudden eclipse; it doesn't stay forever, but while it's there, it makes the world look pitch black. Saturn is your Ascendant Lord, and while he gives you a stable career, he also gives you a "serious" disposition that can easily slip into melancholy if not balanced with "Solar" energy. You are not "submitting" to enjoy life; you are being "eclipsed." Remedy & Problem Solution: ● Rahu Shanti Ritual: On a Saturday, take a dry coconut, revolve it around your head seven times, and offer it to flowing water. This "transfers" the sudden mental shock to the water. ● Durga Saptashati: Recite the "Argala Stotram" from the Durga Saptashati. Maa Durga is the only power that can fully control Rahu’s illusions. ● Bird Feeding (Satnaja): Feed a mixture of seven grains to birds every morning. As the birds eat and fly away, your "sudden" heavy thoughts will also take flight and leave you.