The circumstances or way to pursue sincere Taubah or Regret from the Merciful Lord is:

Makes an austere covenant as well as a guarantee with Allah that he will certainly not duplicate his wrong once again. Turns to Allah and also looks for mercy, before he has actually met with his consultation of fatality. Is a believer and also does righteous kind deeds after that?

Allah says in the Holy Quran Chapter 39 Surah Zumur verses 53-54:

Allah says in the Holy Quran Chapter 3 Surah Ale Imraan verse 135-136:

Allah says in the Holy Quran Chapter 6 Surah Anaam verse 54:

In the name of Allah, we approval Him, pursue His help as well as ask for Allah mercy during Hajj. Whoever Allah guides none can mislead, and also whoever He permits to fall astray, none can assist them aright. We bear witness that there is no one (no idolizer, no person, no grave, no prophet, no imam, no dai, no one!) worthy of worship but Allah Alone, and we attest that Muhammad(saws) is His slave-servant and also the seal of His Carriers.Excellent Pilgrimage of Hajj to the Sacred House of Allah finished with the purpose for His Satisfaction Alone as well as approved by the Merciful Lord certainly wipes off all sins; however, there is an additional much easier means to get one's transgressions forgiven, no matter how many or nevertheless serious one’s wrongs might be!Even if one has dedicated the gravest of transgressions like shirk (linking others with Allah), kufr (shock), murder, Zina, disobedience of moms and dads, and so on; despite the number of wrongs one may have performed in one’s days of ignorance, the Lord The majority of Merciful has promised to forgive them all gave the individual does something: and that seeks honest attrition as well as reverse to his Lord in Taubah prior to his consultation with death!Whatever deeds one may have done, if one counts on Allah Subhanah in genuine Taubah and seeks forgiveness, Allah Subhanah has promised in the Holy Quran that He will certainly forgive all the transgressions of such a believer, even if one has actually dedicated the gravest transgression of all: Shirk! Not just that, our Lord is so Merciful as well as Generous, that He not only will forgive the sins of the follower, He will change his wicked acts done into good deeds!One is aware that he has sinned, and feels apologetic and embarrassed at his sin.(O Prophet) say: O My servants who have wronged their own souls. Do not despair of Allah's Mercy! Surely, Allah forgives all sins. He indeed is the All-Forgiving, All-Merciful. Return to your Lord and submit to Him before the scourge overtakes you; for then you may get no help from anywhere.Allah likes such good people very much, who, if ever they commit a base deed or wrong their own soul by the commission of a sin, remember Allah instantly, and ask for forgiveness from Him for their shortcomings. For who, but Allah, can forgive sins? (And Allah loves those) who do not knowingly persist in the wrongs they did. These will be rewarded with forgiveness from Allah, and with Gardens beneath which canals flow, and they will reside therein forever! How excellent is the reward of those who do good deeds!When those come to you who believe in Our Signs, say: "Peace be on you! Your Lord had inscribed for Himself (the rule of) Mercy. Verily if any of you did evil in ignorance, and thereafter repented and amended (his conduct), Lo! He is Oft-Forgiving, Most Merciful."