you can write about the following i'll give you some ideas : 1948: Gandhi is assassinated
Less than six months after India achieved independence, Gandhi was shot dead while en route to a prayer meeting in Delhi on 30 January 1948. The killing of the Mahatma (‘Great Soul’) stunned the nation.
1950: India adopts its first constitution
The written constitution, agreed by leading politicians in a constituent assembly in the years following independence, was adopted on 26 January 1950, when India was declared a sovereign democratic republic. The day remains a public holiday, marked with military parades in New Delhi.
1962: India and China clash at the borders
A dangerous high-altitude border war between India and China was fought in the mountains that formed the border between the countries.