Dear Sachinn,
Your message is clear and well thought out. SMS is certainly a better idea. It is brief and easy to reach. It can certainly be tried out. How about this as message:" Do not beat in the void, your luminous wings in vain, Mr. PM. Either accept a strong lokpal suggested by civil society or leave the office". Incidentally, we are living in a world that is wiped clean with the lure of lucre, i.e. money.
NC Sinha