At the time of driving, Suparna wilfully drives in a manner that is inherently dangerous. She is aware that she is driving dangerously and continues to do so and that objectively, almost dangerous driving, the driving was so dangerous and it is considered reckless.
She knowingly taken a risk that puts family in danger. She disregard that harm could come to family by her behavior. Her actions deviate far enough from how a reasonable person would act, she should be made liable for such conduct.
Nina to exchange respect. She is mother of Saachi beloved. She should realize that she contribute to that relationship good, bad, or ugly with unique Saachi, in which her Dhruv's chosen partner for life. Even with diverse backgrounds and traditions, it is possible to exchange mutual respect. After all her common love for her Dhruv was the basis of Dhruv and Saachi commitment to a tender relationship which God and her richly blessed.
Even the best intentions do not justify Nina involvement in the marriage union. The husband-wife relationship is one of honor and respect for one's spouse -- intimate and separate from outside influence. Through their "oneness," a couple can establish the priorities and attitudes that foster a loving atmosphere in the home.