Chennai (Tamil Nadu) [India], July 6 (ANI): Several workers of Bahujan Samaj Party (BSP) were detained by Chennai Police on Saturday for staging a protest on the main road outside the hospital where the body of slain BSP leader K Armstrong was brought for an autopsy. The protest which saw BSP supporters sitting on the road resulted in a huge traffic pileup. Armstrong, the Tamil Nadu BSP Chief, Armstrong was hacked to death by a group of unidentified men near his residence in Perambur, Chennai. Earlier today, the protestors gathered outside the Rajiv Gandhi Government Hospital mortuary are rais…