After being admitted in the hospital for close to 28 days, Bollywood's nightingale Lata Mangeshkar was discharged on Sunday.The veteran singer was diagnosed with Pneumonia and was getting treated in Breach Candy Hospital in Mumbai.After reaching home in full health and spirits, Mangeshkar took to Twitter to share the information with her fans and loved ones."Today, I am back home with the blessings of Mai and Baba I have my deepest gratitude to all my well-wishers all over. Your prayers and good wishes have worked and I humbly bow down to each one of you," the legend tweeted.Terming her doctors her "guardian angels" the 90-year-old veteran singer extended her gratitude towards the doctors of the hospital and her well-wishers."My doctors at Breach Candy have been my guardian angels and I stand in eternal gratitude to each one of them, "read her Tweet.She extended her special thanks to doctors and staff nursing her through her ailment in the hospital by tweeting, "A special thank you, ..