A few actions need to be taken if Muslims are "ghairatmand". First Indonesia as a Muslim country needs to recognize two things. One is they should recognize India's atrocities in Kashmir and stand with Malaysia on their stance. Secondly recognize Indian tactics...if they are threatening to cut off Malaysia today economically(palm oil being a major export for Malaysia) then tomorrow they can do the same to Indonesia. Indonesia should treat these opportunistic baniyas the same way and raise the prices of palm oil slightly higher. Use this drummed up political BS by Indian politicians to their advantage...bcuz what can they(Indians) do? Go back to buying from Malaysia? Not only will they lose face...there's no guarantee that Malaysia wouldn't sell at the same higher price as Indonesia. Basically when it comes to Islam and Muslims Indonesia should put aside "competition" and stand shoulder to shoulder with Malaysia.
Other Muslim countries should lower their imports(if not outright ban entirely) from India by the exact amount they are cutting off Malaysia. While at the same time increase their imports from Malaysia...so Malaysia's economy wouldn't suffer.
Last but not least...Imran Khan and Pakistanis should remember how our Arab "brothers" strongarmed Pak from attending this summit(if the news about KSA's threat is true). At the moment...with such fragile economy Imran Khan had no choice but to comply. Pak can't afford a massive blow to the economy like that of Pakistani labor being kicked out of KSA. For now we need to endure that humiliation and work hard so that one day Pak isn't fragile and dependent economically...then show these so called brothers a middle finger when they need Pak.
@Avicenna cheap Indian tactics at play...trying to bend small countries to their will.