>>1958 (OP)Have you seen the mainstream Bollywood classics, such as Sholay, Gangs of Wasseypur, 3 Idiots, etc?
Are you looking for arthouse films? If you are, then Bollywood is not for you. You should look up Indian New Wave and Parallel cinema. Look up directors like Ray, Sen, Ghatak, Benegal, etc
Bollywood was created for the masses in India, where a person could pay a small fee to sit in a comfortable theatre with air conditioning and just forget about their shitty lives for 3-4 hours, so Bollywood movies usually contain a lot of song and dance and banal plots.
>>1959That's a Malayalam film, so it's not Bollywood. Bollywood only produce Hindi and Punjabi language films. Malayalam speakers have their own film industry called "Mollywood"