BJP & Left r the only parties, which hv some principles. all others r either controlled personally like SP (Mulayam), TC (Mamata), AIADMK (Jailalitha), BJD (Navin Patnaik), BSP (Mayawati), RLD (Ajit Singh), NCP (Sharad Pawar) etc. or controlled by a dynasty like Congress (Sonia Parivar), JD (S) (Devegouda Parivar), RJD (Lalu Parivar), Shiv Sena (Bal Thakre Parivar), Akali (Badal Parivar), NC (Farook Abdulla Parivar), DMK (Karunanidhi Parivar) etc.
