I think, Babu Singh Kushwaha joining BJP and quitting the BSP will be loss to BJP rather than BSP, because he is accused for very big scam and corruption. And today's country environment is against corruption. However I may be wrong, because these things hardly matters in Uttar Pradesh. What matters in UP is cast and religion of candidate.
Here is losing both parties BJP & BSP to joining & quitting of Babusingh Kuswaha. Becouse BSP is full of currept & criminal minister & BJP is taking these minister whose quited by BSP.So Here is profit to other parties like SP , Congress & othres........