I have perform a salah / namaz at mosque during ramdan.I feel that I want to do kaza for recent all namaz. I would like to know procedure as well as ayat can recite during namaz. Thank you.
Prayers are in fact mandatory and they are the first thing -among the worship- on which we are accountable on the day of judgement.
The first of his actions for which a servant of Allah will be held accountable on the Day of Resurrection will be his prayers. If they are in order, then he will have prospered and succeeded: and if they are wanting, then he will have failed and lost. If there is something defective in his obligatory prayers, the Lord (glorified and exalted be He) will say: See if My servant has any supererogatory prayers with which may be completed that which was defective in his obligatory prayers. Then the rest of his actions will be judged in like fashion. (Riyadu As-Saliheen)
Scholars are in consensus that fard (obligatory) prayers are a due on every Muslim. But they hold three major opinions on whether or not one must make them up if one misses them and have a consensus that this requires a making repentance (tawbah) first and starting to pray and no more leaving it. The above hadith shows one opinion which is one may "correct" his mistake by praying more optional prayers (but no more missing the actual fard prayers too). The second opinion is basically held by two scholars namely ibn Hazm first and later adapted by ibn Taymiyyah which is that there's no qada' of fard prayers pretending that there's no backup for this and that prayer is only valid if prayed on time the only exception is if one slept or forgot to pray and missed to pray on time based on the hadith:
The Prophet (ﷺ) said, "If anyone forgets a prayer he should pray that prayer when he remembers it. There is no expiation except to pray the same." Then he recited: "Establish prayer for My (i.e. Allah's) remembrance." (20.14). (Sahih al-Bukhari)
The wording that there's no "expiation except to pray the same" however lead the majority of scholars (the 4 sunni madhhabs and apparently shi'a too) to say that one may pray qada' prayers and they say that you may do it as follows as long as you have less or equal than one day of prayers you should pray them and pray your actual prayer later. Else if you had 6 or more prayers to make up you should pray them after praying your actual fard, it is recommended to pray them two by two if you have to make up many of them (this is explained in What do I do if I missed joined prayers? and Does Tartib apply to delayed fardh salats?).
Nevertheless some scholars also recommend you to give an effort in praying optional prayers too while other say as long as you have this due you should concentrate on that.
If you are uncertain how much prayers you have missed you should do a good guess and hope that you will have paid your due when finishing it therefore it would be best to put some effort in nafl prayers.
1- Some scholars maintain that the one who missed prayers for many years may count the missed prayers and make up for them in the hope that Almighty Allah will forgive him.
2- Other scholars held the view that the only option left for one who missed prayers for years is to repent, ask forgiveness of Allah, and do lots of good works; by doing so he can hope to receive Allah’s mercy.
Verse (39:53) O My servants who have transgressed against themselves [by sinning], do not despair of the mercy of Allah. Indeed, Allah forgives all sins. Indeed, it is He who is the Forgiving, the Merciful.
There is no concept of 'kazaa-e-umri', neither in Quran nor in Hadeeth.
Believe it Allah is all forgiving and promise not to leave Salah any more.
There is no concept of "Kazai umri" in islam. Whoever tries to say it is, then they must bring its evidence from Quran and Sunnah. and in Quran and sunnah, there is no such thing that exists. If you leave you salah, then you can never make it. all you can do is that you have to ask Allah to forgive you for missing salah.