The two big parties, the BJP and Congress have multiple fixers and money arrangers. In the last decade, Sitaram Kesari was the quintessential money manager at Congress. During this decade, the fixer has become savvy. He is better educated, has professional acumen and may have business interests on the side. This fixer/advisor combine is of great value to the politician, kind of liason agent cum money manager.
Mulayam Singh (SP) has the colorful Amar SIngh, who is a successful businessman. Sharad Pawar (NCP) has Praful Patel, who runs India's largest Bidi making company. Lalu Yadav (RJD) has businessman Premchand Gupta (now a Union Minister) from Haryana for help. Nitish Kumar (JD-U) has Lalan Singh aka Rajiv Ranjan SIngh to manage the back door manipulations. Naveen Patnaik (BJD) has Jai Panda in Delhi, Rajya Sabha M.P. and who has several business interests.
N.T. Rama Rao, the Actor who founded the Telugu Desam Party, had media tycoon Ramoji Rao to advise him.
There may be more for there are many small parties in India.
People who need to get their work done go to these people first.