PATNA, May 18 -- A wiry Gunjan Kumar, 20, is out on the road at 8am. He usually returns home at 8 pm to share with 11 of his family members the 250-square feet double-storied four-room structure his father Suresh Das, 50, a daily wager, has built in instalments with great effort at Hajipur's Masjid Chowk....