Wohaa, this sounds very dangerous to me. The inner lid is rubber with an aluminum disk molded into it for stiffness. And without proper material and manufacturing, the steam rocket would prove to be more feasible and extremely dangerous. What are the opportunities for Model Rocketry in India? If it doesn't want to move, hit it with a hammer. A non toxic hypergolic combination will be to run high Test Peroxide over a catalyst bed to produce hot steam and abundant quantity of oxygen.
Do you know any rocketry program in the US that teach how build and design amateur rockets?
Engine Hacks: Liquid fuel amateur rocket roundup
Last, the powder is mixed with just enough water alcohol or acetone can be used because they dry faster to moisten the whole batch and if it is to be used in a rocket motor, it can then be loaded directly and rammed in place by blows with a mallet on a rod in the paper rocket tube. So I get more thrust but in return the fuel gives me much higher temperatures and pressures to deal with to get a successful burn. It is an easy form to fill out and costs nothing to get a waiver. Certain composite propellants require a catalyst or curing agent. I did the same but also loaded it dry with good results. In most cases, it will be legal.