@Ujjwal_Agarwal please give gridlock a try, it’ll let u connect a Launchpad/PUSH/APC and more. i made an extra effort early on to make sure this app supports it. happy to help if u run into problems.
if u and other launchpad users want to pool some donation money together so i can buy a launchpad (like u said, they’re pretty cheap) i could possibly do *real native launchpad support, not half-ass emulation, but something that would actually take advantage of the lp’s extra buttons and multi-color leds.