This author has not been identified. Look up 'A. B. Bhattacharyya' in GoogleThis author has not been identified. Look up 'R. S. Rana' in GoogleThis author has not been identified. Look up 'S. K. Guha' in GoogleThis author has not been identified. Look up 'Rajendar Bahl' in GoogleThis author has not been identified. Look up 'R. Anand' in GoogleThis author has not been identified. Look up 'M. J. Zarabi' in GoogleThis author has not been identified. Look up 'P. A. Govindacharyulu' in GoogleThis author has not been identified. Look up 'U. Gupta' in GoogleThis author has not been identified. Look up 'V. Mohan' in GoogleThis author has not been identified. Look up 'Jatin Roy' in GoogleThis author has not been identified. Look up 'Amul Atri' in Google