Forbidden times for salaah / Namaz kis Waqt nahi padh sakte hai..??

There are sure times at which the Prophet (peace be upon him) has denied request to God. 

(i) While the sun is climbing (i.e. amid the time of dawn), 

(ii) when the sun has arrived at its most astounding point i.e. at twelve and 

(iii) while sun is setting (i.e. amid the time of nightfall). 

—–refrence From Hadith Given underneath — - 

Sahih Muslim Book 004, Number 1811 

Uqba b. 'Amir said: There were the times at which Allah's Messenger (might peace be upon him) precluded us to beg, or cover our dead: When the sun starts to climb till it is completely up, when the sun is grinding away's tallness at midday till it disregards the meridian, and when the sun attracts close to setting till it sets. 

— - 

Sahih Bukhari Volume 2, Book 21, Number 288: 

No petition to God after two supplications to God, i.e. after the Fajr supplication to God till the dawns and after the 'Asr request to God till the sun sets. 

— - 

Sahih Bukhari, Volume 1, Book 10, Number 560 

Described Abu Sa'id Al-Khudri I heard Allah's Apostle Peace be upon him saying, "There is no petition to God after the morning supplication to God till the sun climbs, and there is no request to God after the Asr supplication to God till the sun sets." 

— -Roman Urdu Translation — - 

Abu Sa'id Al-Khudri Radi-Allahu-Anhu se rivayat hai ki Rasoollallah Sallallhu-Alaihi-Wasallam ne farmaya Fajar ki Namaz ke baad suraj nikalney tak koi namaz na parhi jaye aur Asar ki namaz ke baad suraj dubney tak koi namaz na parhi jaye 

— - 

Whatever composed of Truth and profit is just because of Allah's Assistance and Guidance, and whatever of blunder is just ones. Allah Alone Knows Best and He is the Only So

Source: http://bit.ly/1rdF7wD